Can you tell me if I can install SS Pro on my Two home PCs with the one serial and registration code

That's exactly what you are entitled to. If it's a desktop + laptop or two desktops doesn't make any difference.

Hi Roma, thank you, I will do that and if one PC crashes I will have a backup to keep my sites up to date, I am fairly new to SS Pro so here are my sites, could give me some feedback please Combined Clay Target Clubs Gympie Clay Target Club Kingaroy Clay Target Club Many Thanks