Thanks, namatse, I have managed to download that OK.
However I have to go out now for the rest of the day so I can't give you a detailed breakdown. Based on a quick read through it looks like he transferred to the RAC in November 1941 and didn't return to the Welsh Guards until after the end of the war, just to be discharged. It doesn't look as if he served in NW Europe after D Day.
Maybe someone else will fill in the gaps for you. I see alan o has already started. You are in safe hands.