The extension is .php . I even opened up the php editor i use, and copied it, then saved it as a php ext.
Unfortanitly, i dont have the link right now, ( cant remember it ) i'll correct this post with it later when i get home.
The school has blocked "IP"'s from accessing directly to the computer. It has to be a registered .com .net, etc etc, for it to work. And i do not have one yet.
So like i said, i'll repost with the link, or get an accont lol n send u the pm for it.