i'm trying to "jailbreak" my iphone 3g! i already downloaded the Quickpwn and the firmware. the problem is that when i get to the part on "browse for firmwear" on the quickpwn, it finds the firmware but at the bottom is says "firmware error string". And so i looked it up on the internet and they said "make sure your downloading the right version. and i checked SEVERAL time, its version 2.2.1. and it still doesn't work. PLEASE HELP ME!. 