[Zope] Catalog contains items, but no results

Hmmm, more catalog strangeness.. I've finally gotten my product to add objects to a catalog correctly (with the correct URL) Whee! On my 2.2 development machine all appears fine, but on the 2.1.6 production server all searches come back with no results. When I look in "cataloged objects" in the management interface, there are many objects with correct URLs...??? Obviously I could just upgrade the production server, but I'm curious if there's something inherently wrong with my code. This is a sample of a call that I make to the Catalog. base_url=self.site_url() self.Catalog.catalog_object(ob,base_url+'/Promoters/'+id) Thanks for any ideas. -e-