Yohoooo!!! Feature Pack 1 for Commerce Server 2002 has officially RTWed (which stands for Release To Web, so maybe it should be written as RedTW). You can download your own copy from here and start playing the awesome new Catalog and Discount management UIs and other features (staging support, catalog sequencing etc.).
Here is the Official Microsoft press release and a couple of news articles covering the FP1 release: