[Zope] web access logs when behind Apache pcgi and authenticated user

Is there a way to get correct web access logs including authenticates user and originating hostname when Zope is behind Apache through pcgi? Details: Z2.log displays authenticated user when Zope is the direct webserver. When Zope is behind Apache, Z2.log becomes useless. It does not list authenticated users (at least when using exUserFolder) and all connections seem to come from 127.0.0.1 (localhost). The apache log lists correct originating IP or domain name, but not the authenticated user. -- Milos Prudek