Is there any more news on this front? It is still the only thing stopping me from replaying the Castle haunt quests and a couple other quests, they just aren't the same without the intended sound fx and old versions of ZC (2.10 and older) tend to not work too well for me under Vista and newer Windows operating systems. I don't believe there's a new sfx.dat editor either so it's not possible for the quest author to just recreate the sfx.dat in the new format (If they still had the sound fx files on hand).