Help using Sprint TP2 with T-mobile

[timrchan]

I switched carriers from Sprint to T-Mobile. Sprint gave me the MSL since I purchased the Sprint TP2 for full retail price.

I ported my number from Sprint to T-mobile and put my new T-mobile GSM card in.

It won't work, and T-mobile Tech support nor Sprint Tech support know what to do, so I am turning to you guys for instructions.

I provided T-mobile with the MSL # that sprint gave me, but they say they don't know what to do.

Do I need to just unlock the phone and if so how with the MSL?
Do I press ## numbers?

Do I have to flash my phone? But this is supposed to be a world phone.

I don't realy want a new rom, I just need my phone to work with t-mobile.

Please Advise