Hello wxpython users

i'm new to the list ...
i'm new to python
and i'm new to wxpython

but i'm an happy user ! i love wxpython ...
i'm trying to develop a GPL product, similar to adobe photoalbum ... (ouch)
(a program to manage photos, with tags ... and search system)
i've got a beta which run like a charm ...

but it turns only on windows ... because i've prefered to use MSXML (com object)
to manage my db, instead of minidom or others modules ...

it's possible to use minidom for many tasks ...
but i need to use xpath search, via an api like selectNodes ... and i can't find it
is there a way to do it , via a module ?

thanx a lot ...