m, ok, download moto-fastboot
http://forum.xda-developers.com/attachment.php?attachmentid=635584&d=1308928440. Unzip it and put the 3 files in there into the 902 fxz folder. Rename the 902 fxz just 902 and have it on your desktop. open a command prompt
cd desktop/902 (enter)
moto-fastboot flash boot boot.img (enter)
moto-fastboot flash system system.img (enter)
moto-fastboot flash preinstall preinstall.img (enter)
moto-fastboot flash webtop grfs.img (enter)
moto-fastboot erase cache (enter)
moto-fastboot reboot (enter)
It won't boot but give it 30 secs-1 minute and then power down and boot recovery
flash 905 and then ICS.
Root, done.