By "it cannot seem to find the path to cgi-bin/formmail", do you mean the server returns a 404 error when trying to do any of the above POST operations? If you're seeing something else, please let us know.

Anyway, this seems like more of a web server configuration issue, especially since the shopping cart can't find "CGI-bin" either. Which web server are you running? Can you run other CGI scripts? Is it maybe a capitalization issue with "CGI-bin" versus "cgi-bin"?