Okay, the
KindleFIX for Vista and XP page has been changed.
I removed the requirement from Step 2, to have copies of kindlefix.py and prc.py in the same folder as the book being converted. I was having an issue on my end that required the files to be there before I could make the conversion (I had to re-install python 2.6 to fix it).
Mobi2Mobi will be next.