Dagu spider robot controller

I'm using a Dagu spider robot controller, which clams "The Spider robot controllers were designed for robots requiring a large numbers of servos such hexapod style robots. Using an ATmega1280 CPU this controller is fully compatible with the Arduino Mega (1280)"

There is no such setting under settings/board. I'm using the Mega 2500 setting. (I have tried other settings as well) and get different errors each time that break down to trouble uploading to board

The chassis is the 12 servo hexapod.
I am using the code provided by Dagu for this board.
HELP

Arduno 1.6.5
Windows 7 service pack 6

I believe the Dagu Spider Robot Board was made with two different kinds of chips. Can you read the information from the chip on your board?