The primary source of information and support on osgNV is the public mailing list (see the Support page). If you're looking for help please try the mailing list before contacting the author privately, so other users can benefit from the discussion (and maybe they can help you too).
To contact the author directly you can write to any of the following email addresses:
The former address is preferred because it always forwards incoming emails to the most active mailbox, which may change over time. Please write a concise and self-describing subject line and place the "[osgNV]" tag in it in order to facilitate email filtering.