I'm not one for posting a "how do you do this?" without posting some code or an attempt - but I can't find a tutorial anywhere! I don't even know where to start.
When WordPress upgrades, or even some plugins like SEO by Yoast, they give these wonderful little "guided tour" tabs. I've done some searches on a tutorial for this, but I suspect I'm not even naming them properly to show any Google results!
Simply stated, what methods are responsible for making Admin popups such as the ones mentioned above?