mhardman,
I too purchased the MagCat at Dicks in Fairfax, VA. I received all the modules with it. No manual, but I downloaded the Martin Jag Magnum manual online. They are the same bow. You should find the module you need in the Jaguar Magnum manual. I believe it is an F-1. Also, you may need to adjust the cable on the Dyna cam to position three to make it shorter.
Here's the link for the manual:
http://www.martinarchery.com/manuals/2006_BowManual.pdf
Also, Dick's isn't a bad place to buy the gear, as I purchased my bow for under $300 with everything on it, but I don't think they really know how to tune or set it up properly. Good luck!