SOS 2008 doesnt work with windows 7. You'll need a new installation disc. The disc alone is $50, but if you buy an elective, like the history of one ofthe 50 states, it's included. The state histories are cheaper, around $30. Then all of your old curricukum discs will work with windows 7. I'm currently running some curriculum from as far back as 2005.
We're on our second year of homeschooling.
DS - 6th grade
DD - 1 year old