Even though you got it working I wanted to drop in here in case your still reading your thread.
I would NEVER do this with WA. The add on is amazing, and I use it frequently, however it is a memory hog. There is a module for DBM that will do all of this for you with nice little bars that you can move about that will track anything you want and is much easier on the processor. Tracking a bunch of CD's for your raid with WA will use up a very large amount of memory and be hard to track if you are in a 25 man raid.
It's really not an issue to track them (It's 7 people's abilities on 1 fight and it's easier for me to play around with an addon that I use on a daily basis than it would be to configure a DBM module, especially since I don't even use DBM), honestly. And I have more processing memory than I know what to do with.
If you're interested....here are the strings for them;