Just an update for all concerned and to log my findings!
I managed to get my original remote key working with a bit of soldering - I have the lock button working but the unlock button is broken. However, the it had lost the matching.
I rematched this one using method by which you put your original non remote key in the ingnition to dash lights on, other original remote key in the door and pressing the lock button whilst turning the key lock and unlock. No noise was made but it seemed to work.
I then moved to the new flip key with code ending CT. This one didn't match using the method above but worked with the method by which you have the key in the car to dash lights on, exit the car, lock it and then on your new remote press the lock button for 6 seconds, pause, press unlock and the horn let off a weedy beep. Then that was matched.
I also had another subsitute old style remote but now I've got the CT flip key I can't be bothered with that so will fleabay it.
Very happy with a remote matched flip key, mega thanks to all on this thread, original posters and those answering my repeated queries!!!
Just need to get this key cut, get a new
badge and then very importantly get a new roll pin for this one (as it was purchased without one).
Anyone know where sells roll pins to hold the key in place?