It was a pleasure helping you. Btw there is a new version of multiPlay with some bug fixes available at
http://dollars5.com/OTA/multiPlay.jad
I think the problem you faced was with the screen settings, as you run it as free personal edition. Try changing the settings:
Video Settings:
Display Full Screen (unchecked)
Display Video Title (checked)
Display VideoControl (Checked)
Hopefully this should work. Should you still have problems let us know, it would be kind of you to test for us as it may help many other users who might run into similar issues.
Regards.