I just got my iphone 3g yesterday and have been looking up how to jailbreak but have some questions. What firmware should I have on the phone to jailbreak if I want to install Cydia? I already upgraded to 2.2, how do I downgrade (if necessary)? Would I need to restore and erase everything? What's the best way to jailbreak, does anyone have a reliable guide that they have used? I have seen a few but they are a bit confusing. I'm running windows. If anyone can help me out, I'd really appreciate it. PS:Sorry for being such a noob!