[thelist] XML - XSL conversion: not working?

I've been spending some time now trying  to get this XSL to work & I'm
stumped.
It's based on a style sheet from the Wrox press book Professional XSL.
Using the Saxon parser recommended by Wrox it returns an empty html file.
Using  IE5.5 the html components work but the XML data isn't being
displayed.

It's online at my site:
http://www.vianet.net.au/~dante/concepts/concepts.html

Any ideas?

Thanks,
            Oliver Reid
            ICQ: 16291443
            dante@vianet.net.au
            www.vianet.net.au/~dante