i thinks i mess up the PHP code so I just delete my current page and create a new page and manually enter the querystring set for the action of the form page as you instructed
and then add a hidden form element contains the product id as the update key value, now is ok
the problem now is solve, but why when everytime i run the wizard it's left the form action blank and even no hidden form element inserted
how can i prevent this from happen again? is there any solution? please help
thanks very much for your help.