you will need the RSD Lite software, the motorola drivers for your phone and this code
http://tinyurl.com/yf5yy9l for radio code 1.3.18
if you are still on radio code 1.3.13 you will use this code
ModMyMoto - Software Modding Forums and Updates for Motorola Phones ...
use the same method as the dude root... meaning
instead of using the rom code for 1.3.13 use 1.3.18 if you have that respective radio code...