[King Justice]

Is there any way someone can make this script also check/block registrations from proxy IPs? Here are three big sites containing lists of proxy site IP addresses:
http://www.samair.ru/proxy/
http://www.publicproxyservers.com/page1.html (Page 1 through 5)
http://www.proxy.org/tor.shtml

Will pay a coder to make this available to everyone somehow.

Edit: Proxy.org has a blacklist of Proxy IPs that you can add to your .htaccess file here. Would still like to use the above IP addresses to be blocked by a script automatically - would be very useful if the script could auto-update itself as the sites do. The sites contain such a massive index of proxy IPs that are freshly updated it would really prevent problematic users.