You might want to look at the fishbowl project on this that was recently announced: http://dev.zope.org/Projects/Wikis/DevSite/Projects/ZopeVersionControl/ (URL copied from Brian Lloyd's earlier email - with a 7s delay in the AU-US net link at the moment, I can't check it's correct, unfortunately...) Anthony -- Anthony Baxter <anthony@interlink.com.au> It's never too late to have a happy childhood.