Hey guys. I have been reading so many tutorials and suggestions that I am even more confused now. I tried downloading an app yesterday and it told me I couldn't since it needed version 3.1. My question is how exactly do I download the higher version and get it back to being unlocked/jailbroken. I have an iPhone 3G, running version 3.0 on T-Mobile. I bought the phone already broken last summer so I am completely at a loss as how to do this. A step by step guide or a link to an answer would be much appreciated. THANK YOU!