Since my last entry I've found out how to lock the focuser (the screw was left out at the factory and stuck in a hole in the case foam). I've also gotten a newer laptop with a bigger screen. Despite all this a sharp focus still eludes me:
The imager in this DSLR is simply too big and I'm not resolving much fine detail. I'm too wiped out financially for a proper camera at the moment.
Everything looks fabulous through the eyepiece, of course.