New loader class (loaded content)

programming flash
1

Hello I have a problem with my New Loader class
I use as3 and buttons to load external files into into my main swf file
and I resize the external files to match my stage but they always load from the top left at x=0 y=0
The action script i use is

var swfHolder = new Loader();

mybutton_btn.addEventListener(MouseEvent.MOUSE_DOWN, mousedownpresser);
function mousedownpresser(event:MouseEvent):void {
addChild(swfHolder)
swfHolder.load(new URLRequest(“myvideo.swf”));

Is there any way I can load the external files into a different position??
Thanks