Sprint Cabs driving me CRAZY!!!

[Jaybell4444]

OK...I have a Sprint TP2, I flashed the Mighty Rom and that went well. I changed Carrier Provision to sprint, commit then reset. So far so good........WRONG. I'm putting the Sprint cabs in the Temp Folder in phone. (Can I put the cabs anywhere in phone to set off the installation?) Phone is in sync with computer. I hit the installation for MMS within the phone and all I get is a White blank screen as if connecting to internet. Meaning NOTHING happens! I tried this with all the cabs I have...MMS, TV, Nascar, Nav. All do the same thing. OK...What the hell am I doing wrong? Call me a noob if you like but I do need help!!!