How to get the administrators password. Easy as read on below and you'll find out as I shall tell you how to do everything you need.
Ok here we go.
Become the administrator!
Man that's just stupid, they block the sites for a reason. Underground sites? Well I'm sure they don't want porn on the computers, or warez and stuff like that.
Look before you do anything stupid think about this. Just because you can't get access to certain things from school is that really worth doing what you want to? On the provider that if you get caught complaining about the sites you can't vist will be the last thing on your mind.