Ok, I see the issue, your named ranges in the formula are whole columns, you can't have whole column references with Array formulas in Excel 2003...
So you should then redefine the named ranges to a limited number of cells or use dynamic named ranges (i.e. change the Refers to field for FY11Commander to:
=OFFSET('Work Orders for FY11'!$H$1,1,0,COUNTA('Work Orders for FY11'!$B:$B)-1,1)
and change FY11RDaysOut to:
=OFFSET('Work Orders for FY11'!$F$1,1,0,COUNTA('Work Orders for FY11'!$B:$B)-1,1)
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