Oh, please. Don't get statistical on us.
Apparently your MBRP isn't working to get rid of your resentments. You can stick with that, and still work the Steps that address resentments.
Incidentally, I STRONGLY recommend you check out the books by Kevin Griffin on Buddhist 12-Step recovery. "One Breath At A Time" is an excellent introduction. He also has an awesome website with a schedule of retreats and workshops he does.
I know many Buddhists in AA--they recover just fine, and are some of the most inspirational people I have met in the program.