Well, until recently, I was also a big noob at flash, well, I still am, but I've seen tons of topics about people asking "how to make games" and "how to do actionscript". So I thought I'd just give some tips here, and how I learned/am learning.
1.Tutvid Watch his videos on flash. Easy, and basic.
3.Download Preloaders and Other .FLA files Online! I figured out one of the best ways to learn actionscript is to download different flash files of the internet, such as the armorgames or newgrounds preloaders. Open them, then search around for interesting peices of code! It's great!