hi everyone, i was experimenting with the tree tag today (which i want to use for providing help page navigation) and i just copied and pasted all code snippets from the ZBook tutorial as well as arranged folders etc. as recommended. my setup is Zope 2.0.0a3 / Python 1.5.2 / RH6 could it be that this tutorial assumes an older version of Zope? Jens Vagelpohl here is the error that appears: Traceback (innermost last): File /usr/src/Zope-2.0.0a3-src/lib/python/ZPublisher/Publish.py, line 256, in publish_module File /usr/src/Zope-2.0.0a3-src/lib/python/ZPublisher/Publish.py, line 161, in publish File /usr/src/Zope-2.0.0a3-src/lib/python/ZPublisher/mapply.py, line 154, in mapply (Object: index_html) File /usr/src/Zope-2.0.0a3-src/lib/python/ZPublisher/Publish.py, line 98, in call_object (Object: index_html) File /usr/src/Zope-2.0.0a3-src/lib/python/OFS/DTMLDocument.py, line 181, in __call__ (Object: index_html) File /usr/src/Zope-2.0.0a3-src/lib/python/OFS/DTMLDocument.py, line 177, in __call__ (Object: index_html) File /usr/src/Zope-2.0.0a3-src/lib/python/DocumentTemplate/DT_String.py, line 514, in __call__ (Object: index_html) File /usr/src/Zope-2.0.0a3-src/lib/python/OFS/DTMLMethod.py, line 152, in __call__ (Object: standard_html_header) File /usr/src/Zope-2.0.0a3-src/lib/python/DocumentTemplate/DT_String.py, line 514, in __call__ (Object: standard_html_header) File /usr/src/Zope-2.0.0a3-src/lib/python/OFS/DTMLMethod.py, line 152, in __call__ (Object: help_menu) File /usr/src/Zope-2.0.0a3-src/lib/python/DocumentTemplate/DT_String.py, line 514, in __call__ (Object: help_menu) File /usr/src/Zope-2.0.0a3-src/lib/python/TreeDisplay/TreeTag.py, line 151, in render (Object: Outline) KeyError: Outline