DECLARE @REQUEST_DATE varchar(10)
SELECT @REQUEST_DATE = '1/9/2010'
select t1.* from (select ForeignKeyId,AttributeName, max(Created) AS MaxCreated
from YourTable
where created < @REQUEST_DATE
group by ForeignKeyId,AttributeName) t2
join YourTable t1 on
t2.ForeignKeyId = t1.ForeignKeyId
and t2.AttributeName = t1.AttributeName
and t2.MaxCreated = t1.Created