Cant Get Sprint TP2 SIM Unlocked Help!!

[lief4321]

ok i recently recieved two Att Sim cards from Ebay and i used the Rhodium SIM Unlocker to unlock the sim about 4 times now and every time the unlocker succeded and when i goto SIM security it says the phone is sim unlocked but when i goto put an ATT sim in the phone and put it in GSM only mode i noticed there is an ! where the signal is suppose to be i can easily put my contacts on the ATT sim card with no problem and when i try to connect to the internet in global mode it asks me if i should connect to Media Net,Sprint,ATT it wont connect to media or att because is says that there is no signal i went over to Rhodium's website and sent him 2 emails with no response i emailed his XDA account but i didnt get any awnsers either Any Help Would Be great Thanks