Mailing list
We have a mailing list for general discussions on zena (user & developer)
Ticket tracking
You can also find some information on the development of the project on the ticket tracker for zena.
Source code fisheye statistics:
IRC channel
Obviously named #zena... on irc.freenode.net. For information on available clients and usage see this page.
Source code
You can get the latest sources with subversion:
# svn co http://svn.zenadmin.org/zena/trunkOr download the latest stable release: zena.tgz.