Xml gallery tutorial problem

I’m following this tutorial to create an image gallery.

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

I can get the main part of the gallery to display just fine, but I can’t any thumbnails to display at all. Here’s what I have done so far:

http://s38.yousendit.com/d.aspx?id=13NDFI21TGWVV25JMFVKHD39WE

As you can see I’m trying to get the thumbnails to display in a vertical fashion and I would like to have two side by side if that is possible but at the moment I can’t seem to be able to display any. Nevermind the fact that the tutorial displays them horizontally. I should still be able to display one or even just part of one, but I can’t. I would really appriciate it if someone could take a look at my file and tell me what I’m doing wrong. thx in advance.