Hi Bob,
Yes, I still have the programme. I haven't owned the backyard version, so I'm not sure what the differences are, but one major fact would be the ability for the Pro version to control your scope direct from your computer, (providing your scope is compatible). If you go to Imaginova's web site at
http://www.com.starrynight.com they have a comparison chart of their products. Another website to look at is
www.wap.org/journal/starrynightpro/default.html which gives a glowing review of the product.
There are many other sites where the programme has been reviewed, and I expect your own Club members will be able to help out as well.
Let me know if you are interested.
Regards,
Mike