There are lots of posts about this. If you do a search you will find what your looking for.
As far as how to scan for a file this is in the manual.
The SQL code you may want is something like:
SELECT
tblComputers.Computername,
tblComputers.Username,
tblFileVersions.FileVersion
FROM
tblFileVersions
INNER JOIN tblComputers ON (tblFileVersions.Computername = tblComputers.Computername)
WHERE
tblFileVersions.FilePathfull LIKE '%zebrabarcode.ttf'