1) Try www.meebo.com to just chat on most major chat clients.

2) GMAI: Try httpS://www.gmail.com. This almost always works. You can log into AIM through GMAIL as well.

3) If all else fails, you can use a remote-desktop client (http://www.realvnc.com/ - FREE) to hook up to your home computer. Desperate times -> Desperate measures.