Help with XML scroller

1

Hello Everyone,
I am using the code below to build an XML based scroller. The thumbnails are loaded into thisThumb with a border sprite name blackBox behind it. Problem is I want blackBox to be above my thumbnail. I couldn’t figure out the proper syntax to use the setchildindex code. Anyone have any suggestions?

function buildScroller(imageList:XMLList):void{
for (var item:uint = 0; item < imageList.length(); item++ ) {
var thisOne:MovieClip = new MovieClip();

    //outline
    var blackBox:Sprite = new Sprite();
    blackBox.graphics.beginFill(0x666666);
    blackBox.graphics.drawRect( 0, 0, 326, 200);
    blackBox.alpha = thumbFadeOut;
    thisOne.addChild(blackBox);
    thisOne.blackBox = blackBox;
    
    thisOne.x = thisOne.myx = (326 + padding) * item;
    thisOne.itemNum = item;
    thisOne.title = imageList[item].attribute("title");
    thisOne.link = imageList[item].attribute("url");
    thisOne.src = imageList[item].attribute("src");
    
    //image container
    var thisThumb:Sprite = new Sprite();
    //add image
    var ldr:Loader = new Loader();
    var urlReq:URLRequest = new URLRequest(thisOne.src);
    ldr.load(urlReq);
    //assign event listeners for Loader
    ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
    ldr.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, errorHandler);
    thisThumb.addChild(ldr);
    thisOne.addChild(thisThumb);
    
    //create listeners for this thumb
    thisOne.buttonMode = true;
    thisOne.addEventListener(MouseEvent.MOUSE_OVER, overScrollerItem);
    thisOne.addEventListener(MouseEvent.MOUSE_OUT, outScrollerItem);
    thisOne.addEventListener(MouseEvent.CLICK, clickScrollerItem);
    
    //add item
    scroller.addChild(thisOne);
}

scroller.addEventListener(Event.ENTER_FRAME, moveScrollerThumbs);
trace("termination of build scroller");

}