The new CS6 photoshop had a whole lot of new features that were confusing me a lot too. I went through some demo videos but they only scraped the surface of the applications of these features. Fortunately Adobe made the video of their roadshow that I was unable to attend. http://www.adobecs6vod.com?
sdid=KABYU if you have an hour to spare, go through it and you’ll find a lot more detailed help with the features that have been hard to get used to.