Here is my problem, my website is at "http://lightning.prohosting.com/~allcam"
AND I STILL RECEIVE the "internal server problem or URL not found times after times.
And I think the problem come from the way I'd configure the link.cfg file. I'm sure everything else is ok.
I'm sure also that my system path to "links" is "/usr/home1/allcam/html/cgi-bin/links" 'coz I'd successfully installed a message board.
Here's how I did it with links:

# Paths and URL's to Important Stuff
# --------------------------------------------------------
# PATH and URL of Admin CGI directory. No Trailing Slash.
$db_script_path = "/usr/home1/allcam/html/cgi-bin/links/admin";
$db_dir_url = "http://lightning.prohosting.com/~allcam/cgi-bin/links/admin";

# URL of User CGI directory. No Trailing Slash.
$db_cgi_url = "http://lightning.prohosting.com/~allcam/cgi-bin";

# PATH and URL of Pages to be built. No Trailing Slash.
$build_root_path = "/usr/home1/allcam/html/pages";
$build_root_url = "http://lightning.prohosting.com/~allcam/pages";

# 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";

Even little help is appreciated...