Hiya Tony,
Try this program out. I downloaded it from
this site
I've just installed it and it's not too bad.
You can also try
this one
I'm in the process of trying
this one out now.
Not sure if these are what you were looking for though. Hope it helps anyway.
I see that I was too slow with my reply! My first link was also to a program called celestia.
Well, I had no luck with that last program so don't worry about installing it. Celestia seems the best out of them so far. The second one, Open Universe is not too bad. It's pretty looking but I can't see where it shows the entire solar system. Oh well, I tried!