Where is the default sketch for the Rainbow Cube?


I just got my rainbow cube and it works right out of the box. I have two questions. I am an experienced Ardunio user, but I would like to know I have a copy of the sketch the Cube was running when I received it, in case I bitch it up. Is that available? Second, what board do I attach to when using the Arduino 1.0. Obviously, Rainbowino doesn’t show up on the list.

Many Thanks,