When you put your phone in bootloader (Power button+Record Button+Stylus in reset hole) you will see USB or Serial at top and vX.XX at the bottom. The screen will be dark so you might need a flash light, match the number with the istructions above. You used ROB Mayers clean WM6 awhile back I saw, so NoID RUU should be good for you.
Once in bootloader it will look like this