Yeah, Fox or Lucasfilm themselves won't do anything for you, especially since they refuse to admit there's anything wrong.
But as stated above, Adywan's Star Wars Revisited would be the way to go I'd say. It's what the Special Edition should have been. As close to perfect as one could get with the available resources in terms of visuals and sound.
Here's a link to its page on fanedit.org as well: http://fanedit.org/517/
It's perfectly legal to download it as long as you own the source material (the 2004 official DVD)