Playing sound in external swiff w/actionscript

Ok im doing this tutorial, http://www.kirupa.com/developer/actionscript/sound.htm

It works find in my main movie but i cant get it to work in my external loaded swfs. Do i need to add parent or this somewhere? Can someone plz help me out here :ne:


buttonSound = new Sound(this);
buttonSound.attachSound("3");
buttonSound.start();