Xml-Gallery from Tutorial does not load images in mc holder

When the Xml-Gallery is loaded through a Movie clip:
_root.mc_loader.loadMovie(“galery/thumbnail_final.swf”);

The ‘mc_loader’ is loading the ‘thumbnail_final.swf’ but the ‘thumbnail_final.swf’ does not load the images
The folder ‘galery’ contains the files ‘thumbnail_final.swf’ and also ‘images.xml’ and ‘thumbnail_final.swf’ is working fine when it’s not called from a Movie clip

Somebody knows why?:h:
Thanks