Note that I wrote the extension for an earlier version of Dreamweaver and it may not run correctly in the latest (Adobe) version. Email me at Batmosphere.com and I'll send you an HTML version you can use in the meantime. When I get around to upgrading my copy of Dreamweaver, I'll redo the extension.

Also note that there's a newer version of the player script here: http://digitalmedia.oreilly.com/2006/05/31/build-a-better-web-audio-player.html