The following paths are commonly needed by scripts.
Path to perl: /usr/bin/perl
Path to sendmail: /usr/sbin/sendmail
CGI URL: http://www.yourdomain.com/cgi-bin/script.cgi
Subdomain CGI URL: http://subdomain.yourdomain.com/cgi-bin/script.cgi
Path to cgi-bin: /home/username/domains/domain.com/public_html/cgi-bin
Path to cgi-bin (subdomain): /home/username/domains/domain.com/public_html/subdomain/cgi-bin
If these paths don't work, it is possible that your host has installed your account on somewhere other than /home. Please contact them to get the correct paths.