this is a good guide...but OP should have a warning before the meat and potatoes that rooting and flashing rooms is not for beginners. I have read thru so many guides and how to root posts/threads...and most folks are missing the mark.
I have also noticed that between this guide and the one I used there are differences in the rom flash.
Please remember that rooting, flashing custom roms...flashing radios are NOT a noob friendly thing...and one should do as much research as possible to have the knowledge to deal with the process.
here's the guide that I used...
http://forum.ppcgeeks.com/showthread.php?t=123714
not trying to hijack...but give folks perspective.