PPCGeeks - XV6700 Bootloader downgrade?

I recently flashed my phone with the new VZW update and its been working great but i want to go back to WM6. ive tried everything and everytime i try to load WM6 the upgrade utility detects my phone then after clicking next it shoots it into bootloader and both the phone and pc just hang there and do nothing. even when i put the phone in bootloader before plugging it in it still does nothing and ends up giving me an error then i soft reset the phone and it comes back up in its original state. ive narrowed the cause down to the bootloader because this all worked before and the only thing that has changed is the bootloader, from 1.00 to 1.04. is there a way to downgrade the bootloader?