Loading a swf into a movie clip AS2

I've been having some issues with loading an swf into a movie clip.  The code I'm using is this

on(release){
    contentbox.loadMovie("contact.swf",0);
}

It works fine in terms of loading, but it loads the swf so that the top left corner is in the center of the content box, pushing the bottom and right part of the content way off screen.