accidentally flashed metropcs with sprint ROM PLEASE HELP!!!!

[spankmaster]

So im new to the whole windows mobile flashing and all the particulars and i was actually getting along pretty good, unlocking my phone, flashing a few different radios and roms but i made what turned out to be a huge boo boo. i accidentally flashed my tp with a sprint specific rom cause im a retard. now i cant connect to my metro service and everytime i try to do anything i get a voice telling me im roaming. my number is still correctly programmed on the phone and obviously my ESN is still in metro's database, but what do i need to do to get it back working on metro? Btw, i tried flashing MIghtyRom and another radio after and it didnt help.