[Zope] how to ZODB 2 when using pcgi w/Zope2.0.0b3 ?

Hi (and !help), I've just set up Zope2.0.b3 with pcgi and Apache1.3.6. It works great but I've just learned that the Oracle thingy only works with ZODB 2, not 3. I was using the '-2' option to z2.py before I had set up pcgi and that worked great. How do I get this effect now? Is there something I can set in Zope.cgi? I saw from a previous post that I could probably set up ZServer to get instantiated by pcgi, instead of pcgi_publisher. Reading through the docs made me think there might be a performance penalty to pay, tho. thanks! -reed