If you mean the myspace one, I'm doubtful that you can do much with the script because it's probably all myspace based. Also I don't think that you can get URLs from your myspace songs.
If you want to create a player using song urls, you could probably use a file uploading site to upload the songs and use the urls from them for whatever you'd like.
If I've just rambled on about nothing you understand, because I've confused myself a bit quite honestly, I apologize.