Hi BrianDrab,
Yes! That is exactly the droid KB I am looking for. Interestingly, I do have that KB installed. After looking into it a little further, it looks like the search I was doing to try to find them in my own servicing/Packages directory does not like the "~" character from notepad copy/paste. After replacing each "~" with "?" and searching again, I was able to find those files on my system. Sorry to waste your time on that part...
Dang. I was hoping there was a way to trace the .cat/.mum files like you can with the .manifest files, but I guess it's not that easy. Either way, thank you very much for your assistance. Have a great day!