[Zope] CMF -1-5-0

Hi list, I downloaded cmf-1-5.0.zip and installed it into Zope 2.75b1 Zope_Instance/Products directory. Afer rebooting I was surprised to see it wasn't listed as a Product so I look in Products\CMF-1.50 and there is no __init__.py. Isn't that how products are recognized? I feel I'm missing something obvious :-0 Also I'm having trouble locating CMF documentation. Any recommendations? Thanks, David