guys pls help, i've tried everything, in my school, sites like facebook, youtube, and myspace are blocked, i wanna know if any one knows how to acces the sites even when it is restricted by the school from beign viewed, thanks.

Your school has good reasons for that action. Anyway, you can try using proxy servers. Search using Google to get some.
Beware though, some proxies host trojans that have the potential to take over your PC.