Just ran into the same problem with my Alltel TP on Vzw network. The EPST MIP settings [on your phone dial ##778# (may be ##778 on some phones) choose edit and then your unlock code (000000 for alltel and vzw), then scroll down to MIP default settings] should look like these:
http://forum.ppcgeeks.com/showthread...+shared+secret
Also in EPST go to the security tab and change your settings to
MDN@vzw3g.com where MDN is your 10 digit number
You will need QPST to do some of these steps - Google it the latest version is 2.7 build 323 - the touch pro is model SURF7500A
Then follow the steps here:
http://forum.ppcgeeks.com/showpost.p...&postcount=120
It was difficult, I had to do 3 or 4 DMU resets and I had to force mine into 1X mode by going deep into the basement, but it works fabulously now.
I would also recommend finding the thread that discusses how to copy your HA and AAA Secret codes so you can make backups as mine were erased with one of the ROM flashes.
Good luck it can be done.