ABXD is a board software originally coded by Kawa, and now maintained by Dirbaio.
If you're looking for the ABXD software or a place where to get support, you should try
the new official ABXD development board http://helmet.kafuka.org/abxd; It has all the old versions of ABXD excluding 2.2.4, 2.2.5, or 2.2.6.
If you're looking for plugins, try http://helmet.kafuka.org/abxd/repo/plugins. Note you have to copypaste these.