i bought a jailbroken 3g under the assumption that it was both unlocked and jail broke. well its only jail broke. it has 3.1.2 on it but the modem firmware is 5.12.01 i need help unlocking it, they guy i bought it from is positive you can unlock it but im not figuring it out. ive used black rain, black snow, everything i can think of. please can someone give me detailed directions to completing the unlock if there is even a way????? ASAP!!!!!!