[Zope] Zope on FreeBSD with Python 1.5.2

OK Zope is up and running, (see previous post). I now have a little naggging problem with some Products I think is related to Python 1.5.2. Three items, Confera, IMAPadapter, NotMail all are broken with a traceback during import claiming "non-default argument follows default argument" Is this a known problem? Everything else in Zope works properly as do other products. Do I need to send specific tracebacks?, start digging?, or has anyone else seen this. I haven't looked through the code yet as I just noticed it, hoping someone has the answer! DAve.