To program the Arduino, you need to open the source code, navigate to the ATmega328P sprite, and change the code under the loop and setup block definitions. For now, the reset button restarts the program. By default, I have the 'heartbeat' program loaded in. What heartbeat does is it turns on and off the built in LED attached to pin 13.
The Arduino graphic was from the web. I did the programming for the project. I (was) planning on making a simulation that allows you to use wires and a breadboard to make basic circuits.