I needed some help because I cannot get my iphone to recognize my tmobile sim. To give you an idea of what has been going on, I received an iphone that had been upgraded to 2.0 and after some googling found a site showing how to downgrade to 1.1.4. Followed the instructions and it used winpwn once it came to the restore screen. After that ran its course it immediately came back to the restore screen. I was able to get it running using iliberty but it would not read pick up anything from my sim and lastly I tried ziphone because I watched the screen and it appeared that iliberty kept running into a problem with the bootloader. But even after using ziphone its the same result so Im not sure if there is anything else I can do at this point or if it is possible that my sim card may be too old(got it late '05). Any assistance would be greatly appreciated.