Update from old ZMS 2.3.2 to ZMS 2.9 and higher

Hello,

I have some trouble updating my old ZMS 2.3.2 instances to the actual  
release.

Here are my update steps:

ZMS 2.3.2-b45 (Zope 2.7.3-0, python 2.3.4)
 > ZMS 2.8.1-a02 (Zope 2.7.3-0, python 2.3.4)
 > ZMS 2.9.4-41 (Zope 2.9.7-final, python 2.4.4)
 > ZMS 2.10.3-18_1 (Zope 2.10.4-final, python 2.4.4)

Workflow, History, Cache, etc. was completely disabled.

After the step from 2.3.2 to 2.8.1 eyerything is fine.
The problem occurred when updating to 2.9 and persits when updating to  
2.10.

The problem:
When I turn on "Declarative URLs" some pages are not found anymore...
No special Error-Message, just "The resource could not be found"

The strange part of this problem is that there must be a dependency  
upon some SpecialObjects
in the root-page. The pages with "TitleAlt" similar to the attribute  
"xheadline" of the SpecialObject aren't
found. When I change the name to a different one, so not matching the  
"TitleAlt" of the pages
the pages will be found again....

Does anyone know this problem? Is there a more secure step from 2.8 to  
2.9?


Regards
Frank rossi