[Zope] Authentication problems on FreeBSD with Apache

I have recently installed Zope on FreeBSD running the Apache web server. When I attempt to access the management page from http://my.web.server/cgi-bin/Zope.cgi I get authentication failures. I'm sure there are things that I've missed in what I've seen, and the section on running Zope with Apache in the manual isn't done yet. Can anyone point me towards some of the known issues here as far as what someone clueless about Zope but reasonably familiar with Apache might need to do to get authentication working?