Logging in from a blocked location! :D

Get IRC program on your phone. Then you won't have to worry about bypassing your school thing. This is all assuming you have a phone with those capabilities...

If not, go to www.portableapps.com and download PChat. It's fairly easy to configure and the program is made to fit and be used discreetly from a flash drive on any other computer. That might work unless the place you are, I'm guessing a school, has blocked the rizon thing too, I'm not real sure.