How to load SWF to specific Y position

Another NOOB question. I have a SWF loading in right now, however it loads to the stages x:0 and y:0. Here’s my code:

function craDone(e:Event):void {
trace(“LOAD”);
TweenLite.to (portfolioBucket_mc, 0.5, {x:-831, alpha:0, ease:Back.easeIn});
addChild(l);
}

How do I tell it to load to a certain Y position. The x doesn’t really matter because x:0 is good. Thanks in advance for any help!