I would try a cronjob solution that others would probably not use, there are certainly better ways, but you can look at using scp, something like:

$file = `ls location/of/file/the/cgi/outputs`;
if ($file eq "the expected file location")
{
`scp $file user@server:location`;
}
[download]

If you have your ssh identities set up correctly the above should work if you add it to the crontab, it will check for the existance of the file then put it where you want on the second server, all without modifying the CGI.
This IS a hack, but it's what I would try first if I didnt have rights to modify the CGI.

Regards,
spectre