The EFF has provided a webpage that sends an email
message to Congress concerning SCO's behavior.
http://action.eff.org/action/index.asp?step=2&item=2775
I submitted the webpage and the EFF's response webpage
indicated that email messages were sent to the following.
Sen. Jon Kyl
730 Hart Senate Office Building
Washington, DC 20510
Sen. John McCain
241 Russell Senate Office Building
Washington, DC 20510-0303
Rep. John D. Hayworth
2434 Rayburn House Office Building
Washington, DC 20515-0306