OpenOffice 2.3.1 extension of Zotero 1.0.2 not working

Hi, following the positive announcements of the new version I updated the FF extension 1.0.2 and tried to install the new extension for OpenOffice.

Results:
The first error message after updating the OpenOffice extension told me that the some versions (of what ??). (I don't remember well). I continued.
The next error message contained the following components : com.sun.star.uno runtime exception. python loader : exception. import error. the module named os.traceback follwos. couldn't import traceback module.
I guess the messages are not all in the good order but they were sure part of the message.
I uninstalled and installed again. Now the extension manager says the extension is unknown and gives as error message : com.sun.star.uno runtime exception. python loader : couldn't find core element python loader. context : com.sun.star.uno.xinterface @0

Any ideas what to do ?

Thanks,
ft

I work with OpenOffice 2.3.1 under Win XP.
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