I neglected to mention this earlier, but in case you missed it, a reader noted on the comment section of the blog that the Diamond Schools ended up paying Edison most of the money the company said it was owed for operating the R-4 School District's summer school in 2002.
This is what the reader wrote:
"I believe that Diamond paid $50,000 and Edison wrote off about $20,000. Several years of haggling, bad press, and continual staff morale problems due to this moron's actions."
I believe the reader may have been referring to R-4 Superintendent Mark Mayo, who led the push to file the lawsuit. As far as I have been able to determine, the Diamond school district is the only one to ever express dissatisfaction with the financial end of having Edison run a summer school.