One thing which is really unfortunate (but necessary) about the DUVAGA project is that all major functionality is not available to the public. We have developed some really nice tools and a good workflow but no one outside of a class setting has access to any of these materials due to copyright restrictions.
Back in June, we put together a short, written overview of the system for the VRA Bulletin. Since we are also lacking in basic instructional overviews for users, I applied some screen captures of the various features along with text from the bulletin in a PDF document.