I have a iPhone 2G 2.0.1 firmware and I want to upgrade to 2.2 using QuickPwn. But I'm worried because my iPhone is unlocked,is there any tutorials I can look at for the 2.2 update? I'm a PC btw
If you use search on the top right corner of your screen you will find lots of information on this. There are several threads in which steps on how to upgrade safely are provided. Do you have the 1st gen iPhone or the 3G? If it is the 2G iPhone than you can still unlock it with quickpwn; however, the 3G is not yet soft unlocked. Search the forums and you will find lots of important info.
BTW, quickpwn is not design to update your iPhone. It is designed to jailbreak already updated iPhone.