loaded sound won't play..

Can someone please help me out with this... Why won't my sound play? It should play on MousOver and stop on MouseOut... Thank you ahead of time!

stop();

import flash.display.MovieClip;
import flash.events.MouseEvent;

var req:URLRequest = new URLRequest("squeeak.wav");
var sound:Sound = new Sound();
var controller:SoundChannel;

function soundLoaded(event:Event):void
{
    controller = sound.play();
    controller.stop();

this.addEventListener(MouseEvent.ROLL_OVER, playSound);
this.addEventListener(MouseEvent.ROLL_OUT, stopSound);
this.addEventListener(MouseEvent.CLICK, onClickHandler);
this.addEventListener(MouseEvent.MOUSE_DOWN, onPressHandler);
this.addEventListener(MouseEvent.MOUSE_UP, onReleaseHandler);

}

// if you want a hand cursor
this.buttonMode = true;
this.useHandCursor = true;

function playSound(myEvent:MouseEvent) {
    trace("On");
    this.gotoAndPlay("one");
    controller = sound.play();
}
function stopSound(myEvent:MouseEvent) {
    trace("Out");
    this.gotoAndPlay("two");
    controller.stop();

}
function onClickHandler(myEvent:MouseEvent) {
    trace("I waited for Press AND Release!!!");
    this.gotoAndPlay("three");
}
function onPressHandler(myEvent:MouseEvent) {
    trace("Press");
}
function onReleaseHandler(myEvent:MouseEvent) {
    trace("Release");
    this.gotoAndPlay("four");
}

sound.addEventListener(Event.COMPLETE, soundLoaded);
sound.load(req);