All the problems are now fixed.
To get the switches working, I just had to re-do them for each of the individual aircraft making them aircraft specific rather than having all the key presses as one common deal. (IE naming all of the APU Start clicks "APU STRT" does not work, it must be done for the individual Wilco aircraft).
And the default FS "master generator", which I never even considered using (because most default FS controls do not work with the Wilco bus), turned out to do the trick.
I have just one question remaining for you: Is it possible to have JUST wing anti-ice? I've gotten individual Engine 1 and Engine 2 anti-ice buttons working for the Wilco A320, but the can not find an individual Wing Anti Ice (the default FS command does not work in this case).
Thanks very much for all your help! Yesterday at this time I had three buttons on my overhead panel working, now I have about 3 buttons left!