I thought DM5 had been upgraded to DM6.0 effectively making him compatible with the latest SM3... There's also a patch around the net for those who want to upgrade DM5 to DM6.0
Unfortunately though, the upgrade still hasn't sorted out the main issue, which has always been what-the-hell-does-this-have-to-do-with-consoles, and also the other issue, how-does-this-relate-to-Cell-in-any-way?