How to align this mc

i want to align my “img” mc to stage but i can not get it work
here is the code


Stage.align = "TL";
Stage.scaleMode = "noScale";
stop();
import com.McPan;
var clip:MovieClip = img;
var easing:Number = .9;
var sliderXpos:Number = 40;
var sliderYpos:Number = 40;
var aperatureWidth:Number = 800;
var aperatureHeight:Number = 300;
var imgXpos:Number = ((clip._width - aperatureWidth)/2);
var imgYpos:Number = ((clip._height - aperatureHeight)/2);
var nMC:McPan = new McPan(clip, easing, sliderXpos, sliderYpos, aperatureWidth, aperatureHeight, imgXpos, imgYpos, true);
img.b1.onRelease = function() {
    nMC.slideToPoint(40,40);
}

img.b2.onRelease = function() {
    nMC.slideToPoint(-40,50);
}

img.b3.onRelease = function() {
    nMC.slideToPoint(100,150);
}

but the


Stage.align = "TL";
Stage.scaleMode = "noScale";

is not doing anything . here is the screenshot