OT: ICFP 2001 (xsl solution?)

For purely academic reasons I'm interested if anyone can come up with a
solution for this year's "International Conference on Functional
Programming 2001 Programming Contest" which basically involves
transforming some XML. I'm more interested in whether it's possible to
get optimal (or good) results cleanly rather than a messy/fast/identity
transform. I'd do it myself, but it makes my head hurt.

Here's the link:
http://cristal.inria.fr/ICFP2001/prog-contest/task.html

Piers.

PS. Extra credit: submit an XSL-based entry to the competition! ;-)

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list