[Zope] Installation problem with CMF 1.2

Hi, I'm new to zope and CMF. I was following all the instructions to install CMF1.2 but couldn't see anything in Control Panel/Products after restarting Zope. It took me a while to figure out that the individual folders CMFDefault CMFCore CMFTopics CMFCalendar have to be copied directly into the products folder ( eg. Products/CMFCore ) and not under Products/CMF-1.2. All documentation refers to installing these under Products/CMF-1.x or that's what I understood. -Gunjan