[Zope] CMFBackTalk

[Asad Quraishi]

In the Plone documentation it is stated that the CMFBackTalk product is 
used to build the documentation.  I would like to use this product in my 
Plone site to enable  the creation of on-line manuals.  Does anyone know 
where I can get this product from?

 From the Plone docs under Appendix D: "The Plone book uses CMFBackTalk, 
based on Backtalk, orignally developed by Chris McDonough. CMFBackTalk 
is developed by Kapil Thangavelu with some minor hinderances from Andy 
McKay."

Thanks in advance.