the current version on dfwiki is pretty stable.
It can be downloaded here
http://appserv.lsi.upc.es/palangana/moodle/course/view.php?id=15
Rigtn now we are on vacation, but on septembre we are planning to start workting to fit the requirements stated to make dfwiki the official moodle wiki module.
cheers
Marc
ps. sometimes the download page fails,
, but usually in a few ours I'm abla to gt it up again.