Uploading an image dynamically into Flash

I'd upload an image choosen by the client, but I want to wrap it in a movieclip in order to manipulate its size and color with color transform. How can I do it? (AS3 in Flash 10)

My code:

import flash.display.SimpleButton;
   import flash.net.FileReference;
   import flash.net.FileFilter;
   import flash.events.IOErrorEvent;
   import flash.events.Event;
   import flash.utils.ByteArray;
   import flash.display.*;
   import flash.geom.*;

   var loadFileRef:FileReference;

   const FILE_TYPES:Array = [new FileFilter("Image Files", "*.jpg;*.jpeg;*.gif;*.png;*.JPG;*.JPEG;*.GIF;*.PNG")];

    function loadFile(event:MouseEvent):void {
    loadFileRef = new FileReference();
    loadFileRef.addEventListener(Event.SELECT, onFileSelect);
    loadFileRef.browse();
   }

    function onFileSelect(e:Event):void {
    loadFileRef.addEventListener(Event.COMPLETE, onFileLoadComplete);
    loadFileRef.load();
   }

    function onFileLoadComplete(e:Event):void {
       var loader:Loader = new Loader();
       loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onDataLoadComplete);
       loader.loadBytes(loadFileRef.data);
    loadFileRef = null;
   }

    function onDataLoadComplete(e:Event):void {
    var bitmapData:BitmapData = Bitmap(e.target.content).bitmapData;
   
    if((bitmapData.height)<=(bitmapData.width))
    {
                var r:Number = bitmapData.height/bitmapData.width;
                var ra:Number = 500*r;

                var matrix:Matrix = new Matrix();
                matrix.scale(500/bitmapData.width, ra/bitmapData.height);
               
    graphics.clear();
    graphics.lineStyle(1, 0x000000);
    graphics.beginBitmapFill(bitmapData, matrix, false);
    graphics.drawRect(0, 0, 500, ra);
    graphics.endFill();
   
    } else {
    
                var d:Number = bitmapData.width/bitmapData.height;
                var da:Number = 500*d;

                var matrix2:Matrix = new Matrix();
                matrix2.scale(500/bitmapData.width, da/bitmapData.height);
    
    graphics.clear();
    graphics.lineStyle(1, 0x000000);
    graphics.beginBitmapFill(bitmapData, matrix2, false);
    graphics.drawRect(0,50, 500, da);
    graphics.endFill();
    }
   }

  boton.addEventListener(MouseEvent.CLICK, loadFile);

Any help will be very appreciated. Madrid.