I've attached a working version of pi-0.6 which will work under Windows. I had to make a few changes in the code, which have been attached as a diff. Probably caritas could apply them in the next release (they're generic).
Usage: Unzip pi-0.6-win32.zip somewhere and run as instructed above by caritas (You'll need a working
Python with
PIL installation). In case you want the proper fonts, unzip xpdf-fonts.zip in the same directory and adjust the paths in bin/xpdfrc (right now it's hardcoded to C:\pi).
Enjoy!