I just got the My Touch (T-Mobile Version) and it is Unlocked and I am using it in the AT&T network. It currently has 1.5. How do I get updates to the Firmware. Can I just use the Systems Update on the phone? Would that even work since it would be T-Mobile pushing those out to the phone and I am not on their network? Or... do I have to manual update through the PC and If so, how and where to I get the firmware?