I wanted to build python-moinmoin from the 1.8.x series because python-moinmoin 1.9 didn't work for me.
So I went and grabbed the source tar ball from http://git.debian.org/?p=collab-maint/moin.git;a=summary.
Then I did the following:
tar xvzf moin.tar.gz sudo apt-get build-dep python-moinmoin
dpkg-buildpackage -rfakeroot -uc
and then I got myself a debian package working, a few more edits on the website configuration, and I was good to go with my wiki.
That's here short for reminding me, in case I need this again...