Any idea why this proxy script isn't working? - Pls help

Hi, I'm currently developing my new site www.proxygen.info, and I've installed the CGI Proxy script via http://install.xav.com

Now what I'm having trouble with is, why isn't it working? I've contacted the host and he says that proxies are not blocked.

Basically, it's an index.php with an include tag to cgiproxy/nph-proxy.pl (default) and the text/form shows exactly how it should, but when you click to start browsing, the next page is blank/not found?

I've tried reinstalling the script, checked urls etc. No luck.

Any solution? Thanks.