[Zope] PIL

I know that this isn't exactly a Zope question, but it is pyhton and I am using it in Zope :) I downloaded and installed the Python Image Library (PIL). How can I get the Python interpreter to find the PIL modules. In pyhton if I enter:

...

import Image

I get ImportError: No module named Image If I put Image.py into a directory that python currently knows about it finds it. The question then is how do I get the interpreter to know about the new PIL directory, I don't want to move all the files to an existing directory??? Thanks, DR