Hey guys i need help with this. I have currently an iPhone with firmware 1.1.4 and i want to upgrade it, it has been unlocked and jailbroken with Ziphone I have both the 2.1 IPSW and the 2.0.1 IPSW...which one do i use?? which is better?? and can you please tell me how?? on the internet there are hundreds of guides with quickpwn and winpwn using their different versions and such....its really frustrating i currently use iTunes 8.0. and lastly is it actually worth it?? is there is a difference in speed or anything??