Multiple movieclips inside one movieclip

Hi,

This should be simple but I can’t figure it out… I have a master movieclip and I would like to create further movieclips within this one and load images in these. Here is how I did this:

var ThumbHolder:MovieClip = this.createEmptyMovieClip(mcThumbHolder,this.getNextHighestDepth());

var Thumb1:MovieClip = ThumbHolder.createEmptyMovieClip(mcThumb1,mcThumbHolder.getNextHighestDepth());

var Thumb2:MovieClip = ThumbHolder.createEmptyMovieClip(mcThumb2,mcThumbHolder.getNextHighestDepth());

Thumb1._x = 0;
Thumb1._y = 0;
Thumb2._x = 250;
Thumb2._y = 250;

loadMovie(“images/thumb_1.jpg”,Thumb1);
loadMovie(“images/thumb_2.jpg”,Thumb2);

The movieclips are created but Thumb1 is not visible, it’s hidden under Thumb2! What am I doing wrong?

Any help is much appreciated!