APM 2.0 and Arducopter V3.2.1 Quad...?

ArduCopter Copter 3.2
1

I have an APM2.0 lying on my desk
Is there any way I can use the Arducopter V3.2.1 Quad code on it…??

I would like to use and external GPS on it…
How can this be done…??