Motorola MPx220

Does anyone know how to set up an unlocked mpx220 to work on t-mobile t zones? I tried 4 times with 4 diffrent service rep. and we cant get it to work. the phone works and i can send and recivie texts. If anyone has the settings could u send them to me please. Also I was told that maybe only the phone part was unlocked and not the data can this be true?