MVPMC 2.0 is running, Slimserver is runnning. But the buttons on the hauppage remote don't seem to work very well. Do they need to be reprogrammed? How do I do that? Also, it appears that files can be pulled up, but never played.
Some improvements since November, but 2.0 should work. Remote control button mapping is fixed (for now). All mclient button presses need to pass through the slimserver. Bad communication in either direction will make things not work. Give squeezebox or some other Slimserver client a try to test your setup.