Remember that the appearance can be changed with the many option settings. If you don't like the icons or other additions, you can remove them.
Homepage is: http://dmextension.mozdev.org/
Support forum is: http://forums.mozillazine.org/viewtopic.php?t=1086555
Support email is: firstname.lastname@example.org
DMT is now on babelzilla.org at http://www.babelzilla.org/index.php?option=com_wts&Itemid=203&type=show&extension=5238 . Please volunteer there if you want your language translated. Languges that have partial support and need volunteers are ca-AD, id, ja, and tr.