The only tag that will automatically be available will be the ID tag as you are passing that in through the url. To get the rest of the fields you will need a global (I think there may also be a template tag to load the link tags but I can't remember what it is off the top of my head).

global called get_link_tags:

sub {
my $id=shift;
my $table = $DB->table('Links');
my $link = $table->select({ID=>$id})->fetchrow_hashref;
return {%$link};
}

<%get_link_tags($ID)%>