Rom won't load/flash.

[ss0mohit]

I cannot load my Rom. I had vin's rom going and it was working well.
Although I decided to venture out and attempt to put gps on my phone
I used PDAJunkie's guide (superbly written) although, I unlocked with .41 unlocker, tried to unlock it with 2.31, doesn't show the spl. Put the sprint nongps exe format and no avail. doesn't boot up and i'm basically stuck in bootloader mode.