TSQL Help; Need A Header File In The Top Of A Flat File

I have a tsql script that gets the data I need, into the format I need, and  saves it in a format (.output) I need
I also have a script that creates a header for the report, basically its just a name and rowcount() that also works fine.
PROBLEM: If I combine them using UNION, I have to pad out the header report with NULL columns, and it messes up the layout of the report.
Anyone have  a simple way to do this?
here's my code:
SELECT 'A71310000'+ltrim(Str(count(UserName))) + 'HRBATCH' AS header, NULL as col2, NULL as col3, NULL as col4, NULL as col5, NULL as col6, NULL as col7, NULL as col8
FROM db_owner.PS_HR_Hrs
WHERE Reported is NULL
UNION ALL
SELECT EmplID, Convert(VarChar,DateWorked,111),'STSSH', CAST(REPLACE(STR(HoursWorked,9, 5), SPACE(1), '0') AS nchar(9)), HRAccountCode, CAST(REPLACE(STR(EmployeePayRate,18, 6), SPACE(1), '0') AS nchar(18)), 'A_STUDSUM', HRAccountCodeOverride
FROM db_owner.PS_HR_Hrs
WHERE reported is NULL
 What I need it to look like is:
 A713100007HRBATCH
                                                                                       


10068800
                 
2007/06/04STSSH012.00000 A108145
                  00000000007.500000 A_STUDSUM

10068800
                 
2007/06/05STSSH002.00000 A108145
                  00000000007.500000 A_STUDSUM  ...(this is a ragid right with spaces padding out fixed width columns) THANKS for ANY light ANYONE can shed on this.