Here's the diffs I forwarded onto the tracker maintainer. However, Tracker isn't a "supported product", and I guess updating the CVS version to work with 2.4 is some way down the priority list. When the CVS is open to checkins, the community will be able to take up some of this slack :-) The diff attached is not ideal, but it works. As Chris Withers pointed out on the recent Xron thread on zope-dev, I probably shouldn't be adding things from the SearchIndex module to the catalog. Rather, I should be adding instances of classes from the Products/PlugInIndexes product. That's easy to change, though. -- Steve Alexander Software Engineer Cat-Box limited