Does it work with rabidvwm-1.2.2? Might want to try that, just to rule out it isn't the module based on a previous source code.

Edit - ok, nevermind. I just did a bunch of tests and couldn't get it to work either. The only time it did work is if I was specific with the desktop # (as you mentioned above). I tried all sorts of variations of !VWMMoveApp 0 dopus.lister (I use dopus too) and putting in ^@dc^ for the desk #, and I tested with other apps.

Ok, not much help, but confirmed it's not just you. ;)