hey i need help downgrading my ipod touch 2g. I bought the 3.0 firmware and accidentally upgraded to 3.1.2. when i shift click on restore it dosent give me the option to browse for the IPSW. i tried to delete all of the other firmwares and leave only the 2.2.1 firmware but itunes automatically downloads the 3.1.2 firmware. im using windows vista. someone please help.