We acted like cars then moved like we were driving. We took a picture then moved again, etc. etc. etc. We then took these still images into Quicktime Pro (File, open image sequence.). Then all our images were put together into a movie format. (We had saved all our images numerically in order- BTV software does this for you automatically once you choose it as your preference)
We then dragged this movie into iMovie and added sound (music) using Royalty Free music. This type of music is good to use, but it is expensive. When you purchase this type of music, you pay a big fee up front, then you can use it on the web or whatever, because you paid for its use. In other words, no one is making any royalties off of it from each use, only from the initial purchase. You can find a lot of companies on the web that sell this type of music, but shop around to get the best deal. Each of the songs on our CD has a 10 second version, 20 second, 30 second and the whole song, so that you could just import a 10 second segment instead of wasting valuable memory space by importing the whole thing.