Hello all, I've been trying to follow the instructions for getting subSpecialist instances to appear as directly traversable from Specialist instances, but have not yet had any success. Here is what I've done: ArchiveImages (Specialist) defaultRack traversal_method (Python Script) traversal (SkinScript) Renderings (sub-Specialist) defaultRack traversal_method has 'REQUEST, name' as parameters, and the following body: return getattr(container.Renderings, name) The 'traversal' SkinScript has the following body: WITH SELF COMPUTE __bobo_traverse__=traversal_method Nevertheless, when I try to traverse an instance in the Specialist to an instance into the subspecialist, I get an error: http://localhost:8080/ArchiveImages/001/002 Resource not Found Traceback (innermost last): File /usr/local/zope/2-3-1/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/local/zope/2-3-1/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/zope/2-3-0/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: 001) File /usr/local/zope/2-3-1/lib/python/ZPublisher/Publish.py, line 162, in publish File /usr/local/zope/2-3-1/lib/python/ZPublisher/BaseRequest.py, line 372, in traverse File /usr/local/zope/2-3-1/lib/python/ZPublisher/HTTPResponse.py, line 547, in notFoundError NotFound: (see above) The 002 sub-Specialist instance exists and is accessable normally (http://localhost:8080/ArchiveImages/Renderings/002), so I must be doing something wrong in the PythonScript or the SkinScript, but I don't know what. Any help would be appreciated, Michael Bernstein.