I signed up and quickly went through the tour, but now I realize I went too quickly. I don't know how to redo the tour (or if it's even possible), and can't find anything with a similar explanation.

Then again, it's mostly self-explanatory: just click on a Play Now button. :)

(EDIT: Hah! This is kind of cool. I'm playing slots, except not spending any money. (Au contraire, the more I save the more I can play.)