You're welcome, Nuala! Have fun with your new audio insta-library. I can't imagine a question that would be too basic - and your animation question is quite timely!
For this example (created in Storyline 1) I used a fade animation on every one of those itty bitty text boxes and brought them in gradually, each one entering at a different point on the timeline. Funnily enough, just today I posted a makeover of this demo in Storyline 2, and because it has more built-in animation options I was able to use a wipe animation and set it to wipe left to right. It's a big improvement over the fade animation. I talked about redoing the animation at the end of today's post:
http://www.jackievannice.com/?p=175070047