Finding week of the month in sqlserver 2005

DECLARE @DATE VARCHAR(50)
SET @DATE ='04/03/2009'
select cast(datename(week,@DATE) as int)- cast( datename(week,dateadd(dd,1-day(@DATE),@DATE)) as int)+1
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SELECT DATEPART(DAY, GETDATE()-10) / 7 AS WeekofMonth