[Zope] PageTemplates - TAL configuration

[FR Chalaoux]

Hi,

Trying to create a PageTemplates object I got the following error :

It seems that TAL is not correctly installed as I read it on the 
mailing-list, I tried many things but with no success. SO,

Where to put TAL Directory, in <Zope2>/lib/python ?
What is the path file name to create : 'path' or '.pth' or TAL.pth' ?
Which string should be present in this path file, '<Zope2>/lib/python'?
Where to put this path file ?

Remark : I use PageTemplates-1.0, TAL-1.0, ParsedXML-1.0, Zope-2.3.1

FRC

Zope Error
=========

Zope has encountered an error while publishing this resource.

Error Type: AttributeError
Error Value: _v_blocks

Troubleshooting Suggestions

    * The URL may be incorrect.
    * The parameters passed to this resource may be incorrect.
    * A resource that this resource relies on may be encountering an error.

For more detailed information about the error, please refer to the HTML 
source for this page.

If the error persists please contact the site maintainer. Thank you for your 
patience.

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Traceback (innermost last):
  File /usr/local/Zope-2.3.1-src/lib/python/ZPublisher/Publish.py, line 223, 
in publish_module
  File /usr/local/Zope-2.3.1-src/lib/python/ZPublisher/Publish.py, line 187, 
in publish
  File /usr/local/Zope-2.3.1-src/lib/python/Zope/__init__.py, line 221, in 
zpublisher_exception_hook
  File /usr/local/Zope-2.3.1-src/lib/python/ZPublisher/Publish.py, line 171, 
in publish
  File /usr/local/Zope-2.3.1-src/lib/python/ZPublisher/mapply.py, line 160, 
in mapply
    (Object: ptAdd)
  File /usr/local/Zope-2.3.1-src/lib/python/ZPublisher/Publish.py, line 112, 
in call_object
    (Object: ptAdd)
  File /usr/local/Zope-2.3.1-src/lib/python/Shared/DC/Scripts/Bindings.py, 
line 324, in __call__
    (Object: ptAdd)
  File /usr/local/Zope-2.3.1-src/lib/python/Shared/DC/Scripts/Bindings.py, 
line 354, in _bindAndExec
    (Object: ptAdd)
  File /usr/local/Zope-2.3.1-src/lib/python/App/special_dtml.py, line 236, in 
_exec
    (Object: ptAdd)
AttributeError: (see above)