My first post here. I have been reading thru the following http://blenderartists.org/forum/showthread.php?t=86843&page=4
at Blender Artist. As you can see from my post in that thread, I found a windows version of pyxml for python 2.5. I have tested it an I am able to use the script with Blender 2.44 and python 2.5. I just wanted to pass this along.
I hope you find it useful.