Useing MS SQL express (not the Lansweeper scripting)
select c.username,c.computername,s.softwarename,s.softwareversion
from tblcomputers c, tblsoftware s
where c.computername = s.computername
and s.computername in (select computername from tblsoftware
where s.softwarename like 'adobe reader%' and s.softwarename != 'Adobe Reader 8.1.2')
order by softwarename,softwareversion
This finds everyone who has Adobe but not version 8.1.2 (the version my company uses).