I have reviewed other peoples posts/replies to this problem and I can't figure out what is wrong. I too, have this problem:-

Links Manager: Verifying Links
Verifying Links
Link checking started at: Mon Aug 21 02:34:55 2000
--------------------------------------------------------
Unable to load Parallel User Checker. System Error:
--
Can't locate HTTP/Request.pm in @INC (@INC contains: /home/skahoo/public_html/directory/admin /usr/lib/perl5/5.00503/i386-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i386-linux /usr/lib/perl5/site_perl/5.005 .) at /home/skahoo/public_html/directory/admin/Validator.pm line 23.
BEGIN failed--compilation aborted at /home/skahoo/public_html/directory/admin/Validator.pm line 23.
--
Using IO::Socket method instead.

--------------------------------
now I have checked my set up at the server end and all modules are installed as I ran the cgi check modules.cgi that was posted by anthrules and my result was as follows:-

modules.cgi

#!/usr/local/bin/perl
#
#############################################################
# File Name: modules.cgi
# Written by Widgetz, Jerry, Gossamer Threads Scripts User
# Last Modified: November 08,1999
#############################################################
use strict;
use File::Find;
my (@mod, %done, $dir);
find(\&get, grep { -r and -d } @INC);
@mod = grep(!$done{$_}++, @mod);
foreach $dir (sort { length $b <=> length $a } @INC) {
foreach (@mod) { next if s,^\Q$dir,,; }
}
print "Content-type: text/html\n\n";
foreach (@mod) { s,^/(.*)\.pm$,$1,; s,/,::,g; print "$_
\n"; }
print "Done! ($#mod modules!)\n\n";
sub get { /^.*\.pm$/ && /$ARGV[0]/i && push @mod, $File::Find::name; }

Result:-

B::Asmdata
B::Assembler
B::Bblock
B::Bytecode
B::C
B::CC
B::Debug
B::Deparse
B::Disassembler
B::Lint
B::Showlex
B::Stackobj
B::Terse
B::Xref
B
Config
DB_File
DynaLoader
Errno
Fcntl
GDBM_File
IO::File
IO::Handle
IO::Pipe
IO::Seekable
IO::Select
IO::Socket
IO
NDBM_File
O
Opcode
POSIX
SDBM_File
Safe
Socket
attrs
ops
re
AnyDBM_File
AutoLoader
AutoSplit
Benchmark
CGI::Apache
CGI::Carp
CGI::Cookie
CGI::Fast
CGI::Push
CGI::Switch
CGI
CPAN::FirstTime
CPAN::Nox
CPAN::Config
CPAN
Carp
Class::Struct
Cwd
Data::Dumper
Devel::SelfStubber
DirHandle
Dumpvalue
English
Env
Exporter
ExtUtils::Command
ExtUtils::Embed
ExtUtils::Install
ExtUtils::Installed
ExtUtils::Liblist
ExtUtils::MM_OS2
ExtUtils::MM_Unix
ExtUtils::MM_VMS
ExtUtils::MM_Win32
ExtUtils::MakeMaker
ExtUtils::Manifest
ExtUtils::Miniperl
ExtUtils::Mkbootstrap
ExtUtils::Mksymlists
ExtUtils::Packlist
ExtUtils::testlib
Fatal
File::Basename
File::CheckTree
File::Compare
File::Copy
File::DosGlob
File::Find
File::Path
File::Spec::Mac
File::Spec::OS2
File::Spec::Unix
File::Spec::VMS
File::Spec::Win32
File::Spec
File::stat
FileCache
FileHandle
FindBin
Getopt::Long
Getopt::Std
I18N::Collate
IPC::Msg
IPC::Open2
IPC::Open3
IPC::Semaphore
IPC::SysV
Math::BigFloat
Math::BigInt
Math::Complex
Math::Trig
Net::Ping
Net::hostent
Net::netent
Net::protoent
Net::servent
Pod::Functions
Pod::Html
Pod::Text
Search::Dict
SelectSaver
SelfLoader
Shell
Symbol
Sys::Hostname
Sys::Syslog
Term::Cap
Term::Complete
Term::ReadLine
Test::Harness
Test
Text::Abbrev
Text::ParseWords
Text::Soundex
Text::Tabs
Text::Wrap
Tie::Array
Tie::Handle
Tie::Hash
Tie::RefHash
Tie::Scalar
Tie::SubstrHash
Time::Local
Time::gmtime
Time::localtime
Time::tm
UNIVERSAL
User::grent
User::pwent
autouse
base
blib
constant
diagnostics
fields
integer
less
lib
locale
overload
sigtrap
strict
subs
vars
Digest::MD5
Digest::HMAC
Digest::HMAC_SHA1
Digest::HMAC_MD5
Digest::MD2
Digest::SHA1
MD5
Digest
SHA
Compress::Zlib
DBI::W32ODBC
DBI::Shell
DBI::FAQ
DBI::ProxyServer
DBI::Format
DBI::DBD
DBD::ExampleP
DBD::Proxy
DBD::NullP
DBD::Sponge
DBD::ADO
DBD::Multiplex
DBD::mysql
Bundle::DBI
Bundle::DBD::mysql
Win32::DBIODBC
DBI
Mysql::Statement
Mysql
File::Spec::Win32
File::Spec::Unix
File::Spec::OS2
File::Spec::VMS
File::Spec::Mac
File::Spec::Functions
File::Spec
Net::Telnet
Data::ShowTable
HTML::Entities
HTML::HeadParser
HTML::Parser
LWP::Parallel::Protocol::ftp
LWP::Parallel::Protocol::http
LWP::Parallel::Protocol
LWP::Parallel::UserAgent
Mailer
Template
Validator
Done! (209 modules!)
-----------------------------

also here is my links.cfg

# -------------
# Links
# -------------
# Links Manager
#
# File: links.cfg
# Description: Contains all the setup variables.
# Author: Alex Krohn
# Email: alex@gossamer-threads.com
# Web: http://www.gossamer-threads.com/
# Version: 2.0
#
# (c) 1998 Gossamer Threads Inc.
#
# This script is not freeware! Please read the README for full details
# on registration and terms of use.
# =====================================================================

# Paths and URL's to Important Stuff
# --------------------------------------------------------
# PATH and URL of Admin CGI directory. No Trailing Slash.
$db_script_path = "/home/skahoo/public_html/directory/admin";
$db_dir_url = "http://www.skahoo.dhs.org/directory/admin";

# URL of User CGI directory. No Trailing Slash.
$db_cgi_url = "http://www.skahoo.dhs.org/directory";

# PATH and URL of Pages to be built. No Trailing Slash.
$build_root_path = "/home/skahoo/public_html";
$build_root_url = "http://www.skahoo.dhs.org";

# PATH and URL of What's New page. No Trailing slash.
$build_new_path = "$build_root_path/New";
$build_new_url = "$build_root_url/New";

# PATH and URL of What's Cool page. No Trailing slash.
$build_cool_path = "$build_root_path/Cool";
$build_cool_url = "$build_root_url/Cool";

# PATH and URL of What's Rating page. No Trailing slash.
$build_ratings_path = "$build_root_path/Ratings";
$build_ratings_url = "$build_root_url/Ratings";

# Database Options
# --------------------------------------------------------
# You really need to use flock(). However if your system doesn't support it (Win95),
# then turn this off at your own risk!
$db_use_flock = 1;
# Use Pragma: no-cache to stop browsers from caching output? (0 = cache, 1 = nocache)
$db_nocache = 1;
# Use IIS headers? Set this to 1 if your web server needs the full headers (HTTP/1.0 etc.)
$db_iis = 0;
# Field number of category in category.db
$db_main_category = 1;
# Referers -- which hosts are allowed to add to your database.
@db_referers = ('203.109.175.135', 'www.skahoo.dhs.org');

# Email Options
# --------------------------------------------------------
# NOTE: Be sure to edit the text of the message. It can be found
# in the templates directory: email-add.txt, email-del.txt and
# email-mod.txt respectively.

# Set only ONE of either $db_mail_path which should go to a
# mail program like sendmail, or $db_smtp_server which will use
# a SMTP server. Do not set both at once!

# PATH of sendmail. # SMTP Server
$db_mail_path = '/usr/sbin/sendmail'; #$db_smtp_server = '';

# Email address of the administrator. BE SURE TO SET!
$db_admin_email = 'skahoo@itsonline.com.au';

# Notify visitors automatically when their links are validated?
$db_email_add = 1;

# Notify visitors automatically when their links are modified?
$db_email_modify = 1;

# Log all outgoing messages? Put the full path to a logfile and make sure it
# exists and is writeable (chmod 666 -rw-rw-rw-). This logfile can get pretty
# big!
$db_mailer_log = '/home/skahoo/public_html/directory/logs/mail.log';

# Build Options
# --------------------------------------------------------
# Setting for popular cutoff, can either be a percent (i.e. top 3%), or
# a fixed value (i.e. top 10). Enter 0.03 or 10 respectively.
$db_popular_cutoff = 0.03; # Top 3%
# Number of days a link is considered New.
$db_new_cutoff = 14; # 14 days old.
# Return search results bolded (1 = yes, 0 = no).
$search_bold = 1;
# The name of an index file.
$build_index = "index.html";
# The extension to use for non index files:
$build_extension = ".html";

# Should your add.cgi automatically select what category the user
# is adding his link into?
$db_single_category = 1;

# Directory Permissions. Do NOT put quotes around it. Set to 0777
# for world writeable. If you put this at 0755, you might need a
# script to remove any directories created as they will be owned
# by the web server or user nobody. Better solution might be to
# run the nph-build routine from the command shell.
$build_dir_per = 0755;

# The script can now break up category pages that have more then x
# number of links in it. It will also create next and previous links
# to help navigate. Set this to 1 if you want to break up pages or 0 if
# you want to have only one page per category.
# Setting this to one, will also break up the What's New pages into
# per day sections (not affected by number of links per page).
$build_span_pages = 1;

# Number of links per page.
$build_links_per_page = 20;

# Detailed View: The script can build a single html page per link. This is
# great if you have a review in your database. To enable, you must set
# the directory where all the pages will be stored, the url to that directory
# and set the enable option.
$build_detailed = 1;
$build_detail_path = "$build_root_path/Detailed";
$build_detail_url = "$build_root_url/Detailed";

# Use Templates: instead of editing site_html.pl, you can edit regular html pages
# encoded with special <%links_tags%>. It's not as flexible as site_html.pl, but it
# may be easier.
$build_use_templates = 1;

# Site Title, the default title to use. You should really spend some time customizing
# the directory though!
$build_site_title = 'The Skahoo Directory';
# Subcategory Length, the maximum length of the subcategories added into Links.
$subcat_length = '100';


# Date Routines
# --------------------------------------------------------
# Your date format can be whatever you like, as long as the following
# two functions are defined &date_to_unix and &unix_to_date:
# The default is dd-mmm-yyyy.

sub date_to_unix {
# --------------------------------------------------------
# This routine must take your date format and return the time a la UNIX time().
# Some things to be careful about..
# timelocal does not like to be in array context, don't do my($time) = timelocal (..)
# int your values just in case to remove spaces, etc.
# catch the fatal error timelocal will generate if you have a bad date..
# don't forget that the month is indexed from 0!
#
my $date = shift; my $i;
my %months = map { $_ => $i++ } qw!Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec!;
my ($day, $mon, $year) = split(/-/, $date);

exists $months{$mon} or return undef;
$day = int($day); $year = $year - 1900;

require Time::Local;
my $time = 0;
eval {
$time = &Time::Local::timelocal(0,0,0, $day, $months{$mon}, $year);
};
if ($@) { die "invalid date format: $date - parsed as (day: $day, month: $months{$mon}, year: $year). Reason: $@"; }
return $time;
}

sub unix_to_date {
# --------------------------------------------------------
# This routine must take a unix time and return your date format
# A much simpler routine, just make sure your format isn't so complex that
# you can't get it back into unix time.
#
my $time = shift;
my ($sec, $min, $hour, $day, $mon, $year, $dweek, $dyear, $tz) = localtime $time;
my @months = qw!Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec!;
$year = $year + 1900;
return "$day-$months[$mon]-$year";
}

sub long_date {
# --------------------------------------------------------
# This routine is for printing a nicer date format on the what's new page. It should
# take in a date in your current format and return a new one.
my $time = shift;
$time = &date_to_unix ($time);
my ($sec, $min, $hour, $day, $mon, $year, $dweek, $dyear, $tz) = localtime $time;
my @months = qw!January February March April May June July August September October November December!;
my @days = qw!Sunday Monday Tuesday Wednesday Thursday Friday Saturday!;
$year = $year + 1900;
return "$days[$dweek], $months[$mon] $day $year";
}

# -------------------------------------------------------------
# Extra Paths -- unless you feel the need to rename files, you
# can leave this as is.
# -------------------------------------------------------------
$db_script_url = $db_dir_url . "/admin.cgi"; # Admin script.
$db_header_path = $db_script_path . "/header"; # Place to store header and footers.
$db_footer_path = $db_script_path . "/footer";
$build_search_url = $db_cgi_url . "/search.cgi"; # URL of search script.
$build_add_url = $db_cgi_url . "/add.cgi"; # URL of add script.
$build_modify_url = $db_cgi_url . "/modify.cgi"; # URL of modify script.
$build_jump_url = $db_cgi_url . "/jump.cgi"; # URL of jump script.
$build_email_url = $db_cgi_url . "/subscribe.cgi"; # URL of email update script.
$build_rate_url = $db_cgi_url . "/rate.cgi"; # URL of rate script.
$db_mail_url = $db_dir_url . "/nph-email.cgi"; # URL of admin mass mail script.
$build_css_url = $build_root_url . "/links.css"; # URL to your CSS file.

$db_lib_path = $db_script_path; # PATH of library files.
$db_links_name = "$db_script_path/data/links.db"; # PATH to links database.
$db_category_name = "$db_script_path/data/categories.db"; # PATH to category database.
$db_valid_name = "$db_script_path/data/validate.db"; # PATH to validation database.
$db_modified_name = "$db_script_path/data/modified.db"; # PATH to modification database.
$db_url_name = "$db_script_path/data/url.db"; # PATH to URL lookup database.
$db_email_name = "$db_script_path/data/email.db"; # PATH to email database.
$db_links_id_file_name = "$db_script_path/data/linksid.txt"; # PATH to links counter file.
$db_category_id_file_name = "$db_script_path/data/categoryid.txt"; # PATH to category counter file.
$db_hits_path = "$db_script_path/data/hits"; # PATH to hits directory.
$db_template_path = "$db_script_path/templates"; # PATH to templates.
$db_rates_path = "$db_script_path/data/rates"; # PATH to ratings.
1;