sp_configure 'allow updates',1
go
reconfigure with override
go

update NNNNNN.dbo.sysusers set NNNNNN.dbo.sysusers.sid=u.sid
from NNNNNN.dbo.sysusers o, master.dbo.sysxlogins u
where u.name='tradelite' and o.name='tradelite' 

Go
sp_configure 'allow updates',0
go
reconfigure with override
go