Thanks very much PKR.
Great advice..... I'll have a look when I get home for such a connection that is looking like its missing a wire.
The most irritating thing about this is that once I had fitted the new Starter motor, the car still didn't start and the symptom was the same. Just a clicking starter motor/wurring sound. Turns out the issue was actually a poor earth connection probably from the gearbox.
When i connected a jump lead from the gearbox to the body, car fired straight up.
So now I have a new starter motor with various scratches on it from installation, a broken plug that I don't know where it should go and a starter motor fitted without that plastic housing as I just couldn't get it back in.
I'm sure there is a lesson here somewhere...........