VSK 5 licencing

Hi, Had to buy the licence for VSK 5 again, downloaded the game but I can’t find anywhere where to put the registration code of the licenced version they emailed me - can’t get a response from them either. Can only launch the game in demo mode with the increased delay at the start which really annoys the X@~ out of me.

anyone know how I can input the licence so I can play with all the functions ???