Into to Flash

Thanks to my handy dandy Kindle Fire, I have finally started to learn how to use Adobe Flash.  A few years ago, I took a class that included Flash, but it's true what they say... if you don't use it, you'll loose it. I downloaded Adobe Flash Professional CS5: Classroom in a Book and so far so good. I'm working with Flash CS 5.5 and I am noticing small differences between CS5 and CS5.5, but it should only be a minor challenge.