Date in the output format is showing wrong

Hi,

I have a requirement to dispaly the date in a smartform in the format: ex: feb 28, 2008.

For this i have used the following code in a text node, But the smartform is not showing the correct format in the Preview, even in the printout. it is showing like 02/28/2008.....

AD Order No:,,&G_W_VBAK-VBELN&

/: SET DATE MASK = 'MMM DD, YYYY'

AD Order Date:,,&G_W_VBAK-ERDAT&

AD Delivery Date:,,&G_W_VBAK-VDATU&

could anybody guide me..

Thanks,

Sekhar.J