[Zope] Which Python versions are supported?

I'm about to set up a new 2.2.4 Zope server and I've been looking around to see what the situation is between Zope and Python 1.6 and 2.0. Oddly, I'm not able to find a reference to this. Can anyone comment on which version of Python is most appropriate for current Zope releases? Perhaps I just missed it, but it would seem appropriate for this information to be in a prominent place (i.e., Zope's download page). Jim Harrison University of Pittsburgh