loadMovie jpg other layers not appearing

This is probably one of those super simple things

i have a child.swf that is loading into a parent.swf

within that child.swf i want to load a jpg as a background -

everything is working well - except that even though the container mc that loads the background image is on the bottom layer it covers up everything else in the child swf (ie buttons)

is this a prob with levels?

this.loadMovie ("1a.jpg", container);