I have a table called SF_Data and there is a column called IN_Date, ID the data looks like:
ID IN_Date 1 9/8/2010 2 26/04/2011 3 20/09/201
You need a convert to fix the data (to the correct datatype) before formatting...
Select convert(varchar, convert(date, IN_Date, 103), 101) from dbo.SF_Data