Mailing the story:

I am pleased to announce that the 'Legacy' branch of Descent|OS has been updated to version 3.0.2. Since the main focus of the Ubuntu-based edition is stability, the main upgrades were big fixes. I have fixed the driver install issue, and also fixed the audio applet issue. Here is a list of the full changelog: PulseAudio is officially default, Mate-media-pulse is much more well-implemented than its GStreamer sibling, so I have implemented it to maintain consistency and make it easier for people to change their audio settings; MATE is updated to 1.4, this is actually a huge milestone, because MATE 1.4 is a stable, well-implemented version, and works better with everything in Descent|OS; Lubuntu Software Center is included.