As you selected the date format d-m-y, did you ever try it with '14-09-2012' in the date field? This is what I would expect to work. The other formats you tried seem to lack the dashes.
As you selected the date format d-m-y, did you ever try it with '14-09-2012' in the date field? This is what I would expect to work. The other formats you tried seem to lack the dashes.