I found it:
http://download.microsoft.com/downlo...ype3.0_OSX.sit
It seems to support OS X's nice sound volume overlays, and wisely doesn't try to control AppleCD Audio Player (as the OS 9 version still does, despite the fact that the 9.1+ installers delete that program), instead the media buttons control iTunes. The Media button is now the eject button.
tooki