@djwell.... make sure you delete the old zip of recovery and download the zip file you want. I personally still use the CWM-recovery. Make sure you don't mess with anything while it's downloading, no text messages or phone calls....
boot your phone into recovery.... volume rocker pressed up and power, until you see the little top hat.
wipe cache partition
advanced- wipe dalvik cache
Back to first screen-- wipe data/factory reset
Install zip from sdcard, find the file you downloaded and install. I usually wipe the caches again but not really necessary. Reboot.... give it a few minutes to reboot, usually takes about 5 minutes or so. Check the app drawer for SuperSU, if its there, you have root access!!
Mr Bobo posted this thread and came up with this way of rooting, if you have any other problems I would send him a PM and let him walk you thru it. Most of the guys (and women) here are more than happy to help you out!! Good Luck and let us know what happens!! Good or bad!! Hope this helps.
**EDIT** Its been so long since I've been on stock.... Im not sure the dalvik cashe will show or not, but once you get root and decide to start flashing roms you'll be doing this so keep it in mind!