I've got a jailbroken 2.02 because that's the highest firmware on my WinPwn program. Did they release a new version? How is it people have jailbroken 2.1 and even 2.2? Can I upgrade without losing any information? I've got Windows and iTunes 7.7.
Well first off if you don't care about an future 3G unlock you should go to here and download and run quickpwn after upgrading to 2.2. If you do care about the future unlock, then you should find a friend with a mac and use pwnage tool.
There is no new version of winpwn currently. And also you will lose everything. So you should make a note of all of the stuff you have downloaded.