I have pilates for dummies which is alright. But I know back when I was looking around that there were also tapes that were specifically called "beginner's pilates" etc. etc.

I think I good idea would be to go to a place like amazon.com and look for pilates tapes. Then you can see a good variety of what is out there, and also read people's reviews to decide if a tape is any good. Then you can buy it there or look for it in the store.