By Robert te Kaat and Bart Gunneman on SharePoint and CMS.
Displaying the contents of a list that resides in a different site, is not a standard out-of-the-box feature of both WSS v2 and SPS 2003. It can however be accomplished in several ways... see the download on Portals & Integration blog
There is however one important restriction: The list to be displayed must be part of a site that resides on the same SharePoint-installation (any virtual server or site collection).
EROL MVP SPS