You can save your images as Jpegs, Gifs, Pngs, etc.
You can make all your Lissajous 3D pictures into a web site gallery like the one here: Lissajous 3D example patterns.
You can also save them as animations. The formats you can use are: animated gifs, or flash animated jpegs or pngs (individual jpeg or png frames stiched together to make a flash movie).
You can also save the animation as separate frames which you can then stitch together to make movies using any other program you like.
To find these features in Lissajous 3D go to the Images drop menu in any of its windows. For the musical e-cards, go to Images | Set Image Copy Size or Save image (Ctrl + W) and look for Save As and copy to FTS e-cards folder.