Hi all, I am having a problem with cataloging of zClasses automatically, as defined by Chapter 9 in the zope book, not actually cateloging anything but the url and the date. I know this problem was asked about way back in November, and Steffan gave the answer that we needed to add the following to the constructor file of the class: "<dtml-with "NewsItem.createInObjectManager(REQUEST['id'], REQUEST)"> ( this line should already be there ) <dtml-call "propertysheets.Input.manage_editProperties(REQUEST)"> <dtml-call unindex_object> <dtml-call "manage_editCataloger('inputFilesCatalog', REQUEST)"> <dtml-call index_object> 'NewsItem' is the name of your class. 'Input' is the name of the property sheet that should be cataloged. 'inputFilesCatalog' is the name of the catalog that should be used. " I've done this, matching up the names to what I have them as, but now, whenever I try to define anything I get the following error: " Traceback (innermost last): File /home/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /home/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 114, in publish File /home/Zope-2.5.0/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook (Object: NewsItem_factory) File /home/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 98, in publish File /home/Zope-2.5.0/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: NewsItem_add) File /home/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: NewsItem_add) File /home/Zope-2.5.0/lib/python/OFS/DTMLMethod.py, line 127, in __call__ (Object: NewsItem_add) File /home/Zope-2.5.0/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: NewsItem_add) File /home/Zope-2.5.0/lib/python/DocumentTemplate/DT_With.py, line 76, in render (Object: NewsItem.createInObjectManager(REQUEST['id'], REQUEST)) File /home/Zope-2.5.0/lib/python/DocumentTemplate/DT_Util.py, line 159, in eval (Object: propertysheets.news.manage_editProperties(REQUEST)) (Info: REQUEST) File <string>, line 2, in f File /home/Zope-2.5.0/lib/python/OFS/PropertySheets.py, line 396, in manage_editProperties File /home/Zope-2.5.0/lib/python/OFS/PropertySheets.py, line 215, in _updateProperty File /home/Zope-2.5.0/lib/python/ZPublisher/Converters.py, line 111, in field2date File /home/Zope-2.5.0/lib/python/DateTime/DateTime.py, line 625, in __init__ Invalid Date-Time String: (see above) " Presumably something nasty has happened with my date, but I can't for the life of me work out what it is. Any ideas would be greatfully accepted. Di (hoping that posting the big error isn't a bad newbie mistake)