OK, first off I highly recommend you get:http://secure.simmarket.com/pete-dowson-fsuipc4.phtml
the best E28 you will ever spend.
I can help you get it set up (installation is easy!!) and then I am more than happy to make my LUA's etc available to you...which will allow you to control any of the cockpit functions from a switch, joystick button, pot, encoder etc.
What these do, by an interface under "other add-ons" in the FSX window, is allow you to allocate very specific functions to given buttons...like "put on oxygen mask", windscreen de-ice, generator switch, landing lamp dim..etc etc etc....there is also a way of making a pot axis send button presses at predetermined points..this is how I do my Radiator Shutter Lever, so if total travel of this axis is 16,462, then it will set "closed" at zero, switch press of "guns warm" at 1,500, switch press for "normal" at 3,500 and so on. A marvellously powerful programme.
These files were done for me by some great people (Gypsy Baron and Guenseli mainly) and cover "the lot".
What this will do is take you "outside" of the configurator and get around any problems it is causing.
If you have a network running FSX you will also need WideClient but this only applys if, for instance, you have weather running on one machine and the "flying window" on another.
The configurator is being looked at but I can't say when that may be identified and fixed.
I would love to see you up and going completely, it has been a long road!!