Proxy servers needed

Hey i am behind a firewall that i have no control over. I have reciently purchased antifirewall 1.1 and it has been working great. I use it to use mirc, telnet etc. They have blocked the stupidest of ports. anyway reciently the servers that this program uses to create a proxy that is used to complete these connections have been unresponsive. im guessing that they are no longer being hosted. Anyway it has the ability to add new servers.

So my question is does anyone know where i can get some free proxy servers that are irc compatable.

Any help would be greatly appreciated.