content query web part is MOSS only

couldn't find CQWP in my WSS3.0. alas, its another MOSS feature

Rss viewer is not available in Wss 3.0

that's interesting to know.
anyway a comparsion table is here, thanks to a link http://wajahatabbas.wordpress.com/2008/01/28/moss-vs-wss/

http://office.microsoft.com/en-us/sharepointtechnology/FX101758691033.aspx