Launchpad
While it might seem strange for a tool whose entire raison d’être is the promotion of free formats to use the mostly-closed Launchpad system for adminstration, that is nevertheless the case. It’s a crazy, crazy world.
You can view OggConvert’s Launchpad page at
http://launchpad.net/oggconvert
From there you’ll be able to report bugs, submit or correct translations, ask questions, and so on.