Hi Rex, thanks for your response. The part of the code that is recording the IP address and browser is simply:

#!/usr/local/bin/perl --
use CGI::Carp qw(fatalsToBrowser);
$|=1;
$RMIP=$ENV{'REMOTE_ADDR'};
$RUAG=$ENV{'HTTP_USER_AGENT'};
[download]

Later on into the code, those two simple variables go on to be recorded into a text file for later viewing at my convenience.