Start with the flash tutorials in flash itself, they are helpful if you are not used to flash. Then visit back to flashkit and wonder through some online tutorials and just have fun with it and find other sites and see if you can recreate what they did to help build your skills, and just experiment and and share with on-line community for good feedback and comments.
u might try buying the flash book titled "Foundation Flash 5" by sham bhangal, amanda farr, et al. It's an excellent book for a beginner. I bought it myself a few months ago and I find it very easy to go through and learn. See http://www.amazon.com/exec/obidos/AS...395781-0687367
for more info.