Good going Sue!!
I also enjoyed that game so much; loved the graphics, and solved many but not all of the puzzles without much help. However, I finally encountered one I couldn't get past, and had to give up; something I don't like to do.
I called it the 'Railroad' puzzle. You versus the computer. I think if I had been paid minimum wage for the time I spent wrestling with it, I could probably take us both on a nice vacation. (Note to self: "What's a vacation?") I really hope you get through that one; I think I never will.
Edit: Just looked it up, and people call it the 'bridge' puzzle because you must cause two segments of a railroad bridge to rise - which means you have to win the game twice.
I also looked forward into the walkthroughs which I normally don't look at, and realized how much I had missed by giving up. Arrgh; I must "Gird My Loins" and play the game anew after all these years. Wish me luck.