Reverting NAND Android to stock Windows ROM (for testing, not to return to windows!)

[whozatmac]

The phone: Sprint TP2, currently running NAND OMGB.

From this state, how can I flash the stock Sprint ROM?

Also, from the stock rom thread, how do I determine which sprint stock rom I need?

So, a bit of background. I traded for this phone on the local scene, when I received it it had already had the radio flash to work with any GSM, Hard-SPL, and was using Haret/SDcard method to boot XDA's Froyo. I finally flashed the NAND OMGB rom. Which is awesome. Props to all involved.

I have microphone problems. They seem to be more likely the hardware problems which plague this device, rather than some problem with android. The only way to be sure is to roll back to the stock rom, and see if the problem persists.

I'm not at all a windows person. And also, I'm new around here, if this is posted in the wrong place, please help me out as I get familiar. . . but even though I'm flashing to windows this seemed definitely an android scene type of problem