You can choose between the new v0.9 branch with is still beta or the old v0.8 trunk witch is in some case outdated ;)
For the v0.9 you need:
A v0.8 installation can be migrated to v0.9. You can install it without shell and you don't need a SVN client.
We preferred the new v0.9 version. We use it here on pylucid.org ;)