looks cool, but just be aware that the Sound.loadSound command caches the mp3 on the user's harddrive by default, so they get a free copy of the music when they press play on the player.
I'm assuming here that it's written in AS2, if it's AS3 it might be different, I haven't looked at AS3 yet. Just a heads up that using these players can (depending on the player) be detrimental if the person setting up doesn't take this into consideration.