Software programs for getting through website blocks

at the school i go they give out IBM thinkpads to all the students... and as such everyone wants to know how to get around the blocks on the internet... so when one person finds an annomous (if thats how you spell it) web proxy everyone finds out about it and the school sees it come up over and over and blocks... so then the techyer people... me included... got firefoxa dn changed our proxie to annoymous proxie hosts... well everyone followed in out footsteps and ow that doesnt work... so its summer now and i was wondering if there was any software programs that allow me to get through the blocks... i found a couple that cycle proxies but i cant get them to right ( i ma assumeing that the school blocked enough proxies that the cycling just cycles blocked proxies)

Thx in advance