Adding a preloader to dynamically loaded .mp3's

I have followed a tutorial found in the "The Complete Flash MX Handbook on building a media player. …the blue magazine-like book from the guys over @ Computer Arts that has someone on the cover looking like he is playing with large Lego blocks. Anyway, I have created the media player following the tutorial, and have even added a volume bar. I am in the process of redoing or redesigning the player to suit my project, however I would like to have a preloader for each of the song being played. If you go to the following link, you may view what I am talking about. http://www.flexfinity.com/audio/mediaplayer.html

The .fla can be found @ http://www.flexfinity.com/audio/mediaplayer.fla

I have read Kenny Bellew piece, http://www.kennybellew.com/tutorial/ and tried incorporating what he talks about building a preloader for dynamically loaded sounds. I have yet to find success… meshing what he says and what I have created thus far with the media player. Any help, would be greatly appreciated.

Thanks In Advance
Bonafide