Here's some basic stuff to help you with FCE, but you can google "final cut express tutorial" to get some more:
http://www.apple.com/finalcutexpress/tutorials/
Also, you can use iMovie to layout you edit (basically cut up the clips and put them in the order you want) and then save it as a "Final Cut XML" file and then import it into FCE and work on it from there. It does take a bit of the hassle of Final Cut out of it in the beginning, but eventually you'll want to work solely with Final Cut as you get more used to it. I would also recommend just playing around with Final Cut on some random clips, try stuff, you'll start getting the hang of the basics easier this way and might even learn some new stuff.