Thanks for replying - lovely car by the way.
Ok, I have tested the switches - they work fine when swapped over to another window, also there is power going to the motor as my voltage tester lights up, also when I operate the switch to complete a circuit to the motor the voltage tester lights up also.
To get the window up I had to pop the top of the motor and wind the giro by hand, otherwise it would he been permanently down.
From looking at the motor the steel cable seems to run through the center base of it - I can't see how this detaches and my concern is that if I buy a new motor will I have to cut the steel cable and re-attach it after I have threaded it through the motor.
And these coupe's look so good with both windows down!