You have a Mac, and therefore you found that RDKamakazie's windows based script wouldn't work. And that said, christim's thread will not work for you either,
Except the files needed in the thread I recommended: http://www.droidforums.net/forum/re...08-multiple-phones-root-them-unroot-them.html do not require windows. You can do it all from your phone by visiting that thread with your phone's browser.
- You download a zip file with 4 files onto the phone
- use Astro to unzip the file
- use Terminal Emulator to then use the rage in the cage exploit,
- and then root your phone by using terminal emulator to put su and superuser.apk into place.