virtualbox.org

Hi

I wondering if its possible to use one of my "desktop" in Ubuntu 8.10 to lock the virtual windows desktop to.

You can't really lock it to a workspace, but you can put it in Fullscreen on one and not open any other Host apps on that. You can then switch work spaces using the Host key (press it once so it releases the keyboard) and the keyboard shortcut for changing work spaces (default should be Ctrl+Alt+left/right).