I'm almost ready to launch a new version of the app and server applet that has MUCH better support for webcams.
Basically, I've changed the mindset for webcams. All you need to do is plug the webcam into your Mach machine, select the proper device in the server applet and go. Of all the support emails I get, 99% are about webcam compatibility. This should solve a lot of those problems and make hooking up a webcam much, much, easier.
If any existing users are interested in being beta testers for the new version, shoot me an email at mmaat(at)ualberta.ca