blimmey what have you done? ok try the unistall thing in \start\allprogramms\sportsinteractive or
go into control panel\add/remove programms
or go into your c drive and delete manually. some files might be write protected so you will have to right click and go to properties and uncheck read only.
i really dont know what to do if these things dont work.
of course you could try to install over the one you have now, or install to another folder | 
