[Zope] Product installation

[John Poltorak]

As I understand it, all that is required to install a product in Zope is 
to extract the archive to the Products directory and restart Zope. This is 
what I have done in the past and then the product shows up under 
/Control_Panel/Products. For some reason this does not happen with 
PloneGuestbook on my installation of Zope 2.7.3 on Linux Redhat v7.3.

Can anyone suggest why? Or where should I look to see any signs of 
problems? No relevant msgs are to be found in the logs.


-- 
John