I'm about to let people know how dumb I really am. How do I hook my 595 Olsen to my computer? I know stupid right? I bought these kits years ago and just got around to putting then together to give to a friend who has been helping me with my display for a few years. He wants something basic so I am going to give him these. I also have the 4 Channel Sean B SSR's and I know how to use them. But I need to know how to connect the 595 to the computer. I think its use to be using a parallel port but I don't have one of those on my computer any more.