Have you looked at what's available in the History palette? (Window > History)
Do you need this information for documentation purposes?
You can "record" the steps applied during a session in an Action. These steps can be "replayed" at a later time on the same or a different image if that's where you're going. Likewise the steps recorded in an Action can be saved as a .txt file and opened/printed with your favorite text editing program.
re: CS
CS has additional logging functionality over prior versions. Check out this article on the new History Log.
http://graphicssoft.about.com/cs/pho...historylog.htm
~Danny~