From my understanding none of the pandora rippers on this site can get anyhting working with flash 9 because of the way it does the cache or something look around on the site and it will tell you somewhere.
Tho I was thinking about since it can get uncached ones it might be able to work in nine, but i have no idea how that works exactly so...
But to solve you problem look at the readme http://www.geopacket.com/PandoraRip/readme.txt Follow those steps and it should work in FF3.1 (Im using it too) but if Vista is the problem them i cant help you.