Am currently building my 3dr cosworth project car, however i've hit a snag - wiring!!

The shell i have had no wiring in it what so ever so i've had to source an internal car loom, the guy i bought it off swore blind it came out of a 3dr cossie and even went to the trouble of marking up what wires go were. Trouble is that now i've put it in the car and run the wires i cant see where the ECU wiring connects to the main car wiring? My engine loom came off a 2wd sapph so am guessing its a bit different to the 3dr connection but i cant even see any spare connections in my car loom that could even be where it goes??! Anyone have a picture or can explain where it would go?

Also the loom doesnt appear to have the wiring for electric windows or mirrors?? Are they seperate stand alone looms or have i been sold a loom from a 1.3 sierra or something??! (and if i have can i still make it work with a cos engine?)