Steve, you don't need that. I followed your tutorial step by step on http://blog.nitdroid.com, except I used the windows version of the flasher (3.5) in all of my tries (failed and successful too). I used a 8 Gb sdhc card, and used gparted and paragon partition manager too in my failed attempts.
I tried "chmod 777 -R" (recursive) on both ext3 partition root too, with no success.