...below does not work, any assistance will be much appreciated. if any other way to do this other than sumproduct exists, please let me know.
SUMPRODUCT(((Jan!A4:A37,Jan!C4:C37,,Jan!E4:E37,,Jan!G4:G37,Jan!I4:I37)='2006 Summary'!A5)*(Jan!B4:B37,Jan!D4:D37,Jan!F4:F37,Jan!H4:H37,Jan!J4:J37))...