[Zope] How to create a TALES namespace on Zope2?

I would like to create a new TALES namespace instead of a new TAL statement (as I say on my last thread) I found this: http://www.zope.org/Wikis/DevSite/Projects/ComponentArchitecture/Zope3Book/t... about how to create them on Zope3 How can I create a new TALES namespace at Zope2? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito