BuddyPress.org

This is probably a silly question, but I can’t seem to find a setting/widget/plugin that will let me keep a “sticky” activity-stream update box on the header or in a sidebar.

I know that if I change the Reading setting to indicate the Activity page, it’ll put the Activity stream and an update box on the main page. That’s great, but I’d like to have the update box on the main page for logged in users and a static post/welcome/About Us thing under that for users who aren’t logged in.

Alternately, I’d like a static page explaining the site for people who aren’t logged in, and then the “homepage” as the Activity page for logged-in users. Is that possible? Is there a setting I’m missing, or a plugin I can use?

Thanks!