Todd, the AAA is just an advanced version of the ACS. They serve the same function. AAA stands for advanced architecture ACS if I remember correctly. For some reason I can't open Ants.com right now, but the ACS product page doesn't give any indication of limitations in regard to working with only certain databases which the original ACS certainly had. It could be re-written for any pair of databases but that took time and money for each version. The AAA is supposed to be different in that it is good to go with any 2 you desire.
I'm not exactly sure how this works, and keep hoping someone knowledgable will comment. And you're right, they definitely won't be paying the old license, or "what is the point".
MGD, I've had an email in to Rik with some pretty pointed questions for a few weeks, but so far no response. I'll try the website contact info.
