For those of you that I have confused in the past, my deepest apologies. I posted something some time ago about the Content Query Web Part (CQWP) and I need to clarify that the web part is a MOSS feature and is not available in WSS sites that are hosted on a server that only has WSS v3 installed.
Now if you have a WSS site hosted on a server with MOSS installed, the CQWP will be available to you. It is a rather handy web part and I highly recommend you check it out. Here is some info about it.