Sorry I should have mentioned that the sensor is still in the car. I need to jack it up to remove it and just havent got around to that yet. So YES the sensor is included. Can post a pic up as soon as I get it out.
I havent cut any plugs off. The grey wire you see with no end is the connections for the ECU. You just strip back the outer cover to get at the wires. There is another connector to attach your laptop with I havent included in the pic but here is a pic of it from the Tech Edge website. You either have the Display plugged in or the laptop into the grey wire with the black thingy on the end.
I installed it myself, was fairly straight forward. You need to find a wiring diagram for your ECU so you know which wires to tap into to. I was using it on a Power FC on my R33 GTSt. I tapped into the RPM, and both knock sensors, plus you get the A/F ratio from the sensor, so on the laptop I was graphing 4 inputs.
Software I used was free and available from the Tech Edge website. Have a look here: http://wbo2.com/sw/log.htm