XML Gallery question that hasn't beena ddressed, I think

This is a great tutorial and exactly what i want to do:

http://www.kirupa.com/developer/mx2004/xml_flash_photogallery.htm

with one exception.

I want to load all the images from the internal Flash library after I’ve imported them, not from and external folder. I know it sounds backwards, but it has to be done that way. I’d still like to use the XML file for the image name and description as I have about 450 images to load.

So, I guess my question is if there is an easy way to modify the existing AS for this tutorial to simply pull from the external library or do I need a totally dirfferent approach?

Any help/ideas/direction would be much appreciated.