Go to Regedit--Hotkey local machine----system----controlset001---control----search for 'windows'----click in it-------in that there will be csdversion. Double click it. Change the value from 0 to 100. That's all! Save it and restart the computer.Your computer is upgraded to Vista SP1. Run setup now. You will be definitely able to play!
OMG THANK YOU MY FRIEND!!!! Your a genius I been working out to try to make it work.. andd you made my dayy thanks it work.. god.. thanks your on earth ;)