UILoader move not in control (Coordinate issue)

programming flash
1

Hi
I am trying to move my UILoader across the screen but it is little bouncy. MY UILoader is in the sprite container and on the mouse down I use stop drag function where I am leaving my UILoader to mouseX and mouseY. But it is taking the top left corner of my rectangular shape UIloader as the mouseX and mouseY. So wherever i leave myUIloader it is bouncing its top left corner to my mouseX and mouseY. I applied algo in which I used calculations to calculate the distance between top left corner of my UIloader and my mouse cursor but that also did not work.
Can anybody please tell me where I am wrong.
Thanks a lot
Anuj
/****CODE/

function dropUILoader(e:MouseEvent):void
{

    if(container is Sprite)
    {
                
        if(e.target is UILoader)
        {
            var myUILoader:UILoader = e.target as UILoader;                    
            myUILoader.move(mouseX,mouseY);

}
}
}
Alternative approach which I tried

//myUILoader.x=mouseX;
// myUILoader.y=mouseY;
//
// var x1:Number=myUILoader.x;
// var y1:Number=myUILoader.y;
//
// var neX:Number=(x1+myUILoader.width)-mouseX;
// var neY:Number=(y1+myUILoader.height)-mouseY;
//
// var neFx:Number=Math.sqrt(neXneX+neYneY);
//
// myUILoader.move(mouseX-neFx,mouseY-neFx)