Hi,
If I understand your question correctly, you want to have add the header information to the footer of XML report.
The easiest way to do that would be creating a report generation sequence that is called to create that XML report. The file reportgen_xml.seq is located at C:\Program Files\National Instruments\TestStand 3.x\Components\NI\Models\TestStandModels.
All you would need is to add the steps from "AddRportHeader" to "AddReportFooter". But make sure you make of copy of the existing file before making any changes.
I hope this helps,
Rajiv G