Sparkfun CAN Bus Shield with Mega 2560

Hello guys,

I looked and I couldn't find anything about how to hook this : CAN-BUS Shield - DEV-13262 - SparkFun Electronics onto the Mega 2560. Like what pins go where. Also, does anyone know if this shield can run off 36V? instead of 12V. The idea is I just want to read the RPM out of this motor. The motor's controller box has CAN in it, so I was hoping I could read something out of it.

Thanks for any helps!