[Zope] Zope process dies in minutes

I would really like to build a Zope+Plone intranet, but I'm having a great deal of difficulty getting Zope 2.7 to stay alive on Fedora Core 3. Most of my searching indicates that this is a memory issue, but I've seen it on two different boxes. The first has 768MB RAM and the second has 256MB, with an additional 4GB partition as swap space. I've seen a supposed fix for RH9 (http://mail.zope.org/pipermail/zope/2003-May/135544.html), but that involves a Zope start script, which I either don't have or can't find. Can anyone tell me how to keep Zope 2.7 running on FC3? Thanks in advance.