I made a couple of improvements to this.
First off, to get around the #$%^ browser media player problems (I'm on a mac, as are many of my users, and the player straight doesn't work on the mac), I swapped it out for a flash mp3 player. So no video there.
I also commented out the code that forces the forum url into the path to the audio file. My audio file sits on my root site folder and is linked to already all over the web. forcing the folder to be in the forum just plain sucked for me. I hope that that is something that can be changed in a final release -- give us the option to set our path to /forum/audio/ rather than forcing the forum url before the media/audio folder.
http://www.staytunedtheband.com/forum/jukebox.php