If you carefully look at the screenshots that I posted on your original thread on this subject you can figure out how this is done. Create a comp with multiple lines as layers. Animate the position of the layers. Nest that comp in your main comp and then warp or bend it with distortion tools. EZ as pie.
If you have no idea what I'm talking about or can't wait for the tutorial that I am working on, take a look at this CS6 project file. It will get you started.
If you look at the file and still have no idea how it was done you will have to learn the basics. Basic Workflow