Go to the report builder, right click on "OS not latest service pack XP", choose "edit report"
Use the following SQL and change 'computer to exclude'
Select Top 1000000 dbo.tblComputers.Computername,
dbo.tblComputers.ComputerUnique, dbo.tblComputers.Domain,
dbo.Web40OSName.OSname, dbo.tblComputers.Description, dbo.tblComputers.SP As
[Current SP], dbo.tblComputers.Lastseen, dbo.Web40OSName.Compimage As icon
From dbo.tblComputers Inner Join
dbo.web40ActiveComputers On dbo.tblComputers.Computername =
dbo.web40ActiveComputers.Computername Inner Join
dbo.Web40OSName On dbo.Web40OSName.Computername =
dbo.tblComputers.Computername
Where dbo.tblComputers.ComputerUnique Not Like 'computer to exclude' And
dbo.Web40OSName.OSname = 'Win XP' And dbo.tblComputers.SP <> '3' And
dbo.Web40OSName.OScode = '5.1.2600'
Order By dbo.tblComputers.Computer