Look in the CDMA upgrade section (I know your GSM but follow me)
Look for the DCD ROM release for the TP....
In the first post of that thread there is a link to DCD's Carrier cabs FTP site.
I'm pretty sure you will find a cab for your carrier there!
http://dcd1182.n715dp.com/index.php?...%2Fcarriers%2F
If not try xda-developers...