[Zope] Product installation problem

[Andrew Ho]

Hi,

  I have just installed Zope with pcgi to Apache.  Everything seems to
work fine except when I un-tared example products into lib/python/products
and restarted Zope, they are not loaded at all.  
  Alternatively, when I put the new Products into
/usr/lib/python1.5/site-packages/Zope/Products, I can see the new Products
loaded into the control panel/product management screen but I cannot get
the newly installed products to work.
  They appear on the control panel/product management but nothing is added
to the pull-down "add" menu.

Anyone know what I may be doing wrong?

thanks in advance,

Andrew Ho