Ok, here's where I stand. I tried and failed to upgrade my unlocked 1.1.1 phone to 1.1.3. So I restored it back to 1.0.2, jailbroke it and installed installer.app. Now I need to revirginize my phone, but bsd subsystem isn't listed in the installer. I can't upgrade the installer to 3.0.6 because it's only compatible with 1.1.1 or higher. I saw something explaining how to revirginize using 1.1.1, but whenever I try upgrading to that from my jailbroken 1.0.2 it goes to the recovery screen, and I can't get it off. Can anyone help?