So I have received my EWS editor and it's very good I'd say idiot proof and can recommend XCAR360 as very efficient. It cost me less than £75 to get all 4 keys back, they used DHL so it took about a week from order to having it in my hand.
Anyway I have read the old ews and new ews. I took the DME password and the synch code from the new EWS and wrote them to the old EWS. I also corrected the VIN and milage. Very nice.