[Zope] sort_order???

hello, ok, here is my code: <dtml-in table-1 sort=date> <a href="<dtml-var URL>"><dtml-var name></a> | <dtml-var value> | <dtml-var URL> | <dtml-var attendee> | <dtml-var date><br> </dtml-in> what's wrong - nothing, it works fine. however, the result is sorted by date ascending and i need it to be reversed. i found a reference to an attribute "sort_order" which can be given an arg such as "sort_order=reverse". the problem here is that it won't work and i can't find any usage info on "sort_order". it isn't mentioned in the DTML Reference and after hours of searching the Zope website i am empty handed. does anyone know how to use this? thanks in advance. -<mike>-