[Zope] Scripting Problem Causing Import Error

[Ben Ocean]

Hi;
I'm trying to import a product but running into a problem because of the 
way I've set up my Zope. Here's my architecture:

/home/httpd/ZopeInstallation/Zope_software_home -- this is where the 
standard distro lives
/home/httpd/ZopeInstallation/OtherProducts -- this is where I install all 
my added products

In the latter directory is where I've installed CMF. The product I'm trying 
to install imports scripts from CMF. Here are the lines of code that throw 
the errors:

from Products.CMFCore.PortalContent import PortalContent
from Products.CMFDefault.DublinCore import DefaultDublinCoreImpl
from Products.CMFCore import CMFCorePermissions
from Products.CMFCore.WorkflowCore import WorkflowAction, afterCreate
from Products.CMFOptions.ExtFile import ExtImage

No doubt this product is thinking the CMF stuff lives in 
lib/python/Products, but it doesn't! How shall I rewrite these lines to 
properly point them?
TIA,
BenO