About 2 months ago I got assaulted for my iPhone3G. Just a week ago i got a another one but used. This iphone3g though is marked as stolen/lost and when i try poppin in my At&t sim card i dont get service. My plan and everything else is alright I even asked the guy at AT&T and he said it dosent matter i wont get tracked down or anything for having a stolen iPhone. But being that theres no service means that the IMEI is blocked. I tried using ziphone to change the IMEI but nothing happens. Is there any other way to change it? Im currently using iphone1st gen and im sick of edge and i dont wanna get rip of this nice iphone3g so anyone can help me out?