I can not answer your question, but I want to do the same thing. I don't really understand what good this does me if I don't have all my snapshots. I'd almost be better off just using scp to copy the whole virtual machine folder to another system. This is what I really want. A backup of my virtual machine including all of its snapshots.
Does anyone know if scp will work fine for this? I think I may need to give up on ghettoVCB if I can only get the current state of the server (or one snapshot/version). If there is a way to use ghettoVCB for this please let me know.