OP...when you say your phone is unlocked, are you talking about your phone being unlocked to use with a SIM card? because you will not be able to flash to any other roms unless you hardSPL unlock your phone. and when you say "true rom", what do you mean? because im thinking the true rom for your phone is the stock rom that is on it right now.
if you want to flash to a cooked/custom rom, you'll need to unlock your radio by following the steps here --->
http://forum.ppcgeeks.com/cdma-tp2-d...w-hardspl.html