A 2002-2003 (manufacturing date) Fireblade would have been a 954CC bike whilst a 2000-2001 (again manufacturing date) Fireblade would have been a 929CC bike. Check on your engine to see what CC the bike is...
I think you have been sold either a 954 ECM instead of a 929 ECM (could be the opposite way around) as I know for sure the pins are different.