Need help using background music

I know how to turn music on/off but I now want to find out how to do the following. On 50cent.com, you can select from a variety of songs, then play the one you wish. I want to know how to do that, with the buttons changing the songs, then being able to press play, and stop. Could someone tell me how to do this, or redirect me to a tutorial that will teach me. I have flash mx, so you could post a flash mx tutorial if you wish. Another example is shown on West49.com, but I dont need to know how to open the playlist option they have. Just a simple left and right button changing the songs, thena a play and a stop button. Thanks in advance.

when you put the songs in the movie export them for action script.After that with a little coding to call the song you want to play and to stop the current one it should work:D