To preface, I am a new iPhone owner. I recently purchased an unlocked & Jailbroken iPhone 2G and it has 2.0.1 firmware. There's no sim currently installed, and I have not used GSM before. And just playing around with the iPhone, I tried to open iTunes, and it requires that I enter the password for the previous owner's iTunes email address. Does this mean I have to reset my iPhone, so that it can recognize my own iTunes account?