Since tons of you have helped me with my idiot questions I thought I’d post this image which explains how to load a program into a Colorduino using an Arduino.
First take the main CPU chip out. Then use jumpers to connect:
Arduino RX → Colorduino RXD
Arduino TX → Colorduino TXD
Arduino Reset → Colorduino DTR
(?Arduino 5V → Colorduino VDD?)
Arduino GND → Colorduino GND
You can see these in the attached image, even though some wires go out of the frame, just follow the colors.
I used an external 6V supply for the colorduino (slider set to “terminal”) so that I did not have to pull to much power from the USB of my portable. Hence the brackets in the 4th connection listed above.
Anyway, I hope this makes it clear to others following the same path.