[Zope] Z2.pid permissions

I've been trying to read the archives, but getting nowhere. Zope was installed by a non-root user, and now we wish to start it in rc.d/init.d so that it runs as nobody. We don't mind the 8080 port at all. But when root starts Zope, Z2.pid permissions seem to intrude, and I've tried every permutation and combination possible (I think) hacking (a random walk really) searching for a combination which will work. Can some one definitively explain how to set _ALL_ the permissions, etc., so that Zope can start properly on boot? Thanks Carl David david@uconnvm.uconn.edu