The bug has been fixed and is now part of the CVS.
Thanks to the libxml team for their responses.
But I can't still make a .exe for windows using py2exe (I can't make it work).
If you have time and want to make a .exe of PyUt, please let me know, this will be gratefully appreciated !
We're working now on plugins stabilization and on next version architecture.
More activity planned on CVS in two weeks (end of the year).