If you need help with dwun, join the mailing list at http://sourceforge.net/mail/?group_id=2278.
You can also email me at firstname.lastname@example.org. I will reply to all non-abusive/UCE messages, so if you don't receive a reply within a few days assume I didn't receive it. (Resend!) Updates to dwun will be posted to http://dwun.sourceforge.net/. If this URL ever stops working, go to freshmeat.net or google.com and search for "dwun".