I've been using this app for nearly a year, and I'm sorry to say that it no longer works. And considering all the problems they had with this version, the last version, and every other version, you should probably try a different app even if the dev does come up with a new version that works, since it probably won't work for long (if history is any guide). If you don't trust me, check out the comments on MacUpdate, which for some reason seem to be far more comprehensive than VersionTracker's.

http://www.macupdate.com/info.php/id/24630/dmgconverter