Roons,
If your TestStand output files are in XML format, then this is the easiest way I know to put your data into MS SQL Server:
Arendar comes with a TestStand XML file parser so that you can merge/compare/analyze data from multiple stations. There is close to a zero integration effort since the parser not only imports data but also builds the database schema. The importer is intelligent enough to recognize when the XML file format changes, and modifies the schema as required (only additions, no deletions). The schema can be locked at any time.
Again, if your reports are of the XML format, there is virtually no integration effort (other than installation of the software) required to import, analyze and present the data across multiple XML outputs.
To let you know, I do work for the company that develops this tool.