Stu from Surreal just sent an email to say the problem pointed out in the story below this one has been fixed (I think his saying the problem would be fixed "shortly" has proven accurate). Here's the deal:

The Mplayer master server has now been fixed. All available servers should now be showing up on everyone's Join Game server list within Drakan! Note that people using GameSpy (which queried the GameSpy master server) did not experience the problem.