Open Question

Hi there, and thanks for your very nice plugin !!!!
I have question, not directly related to you plugin, i’m sorry but i think you would know the answer.
I try to add a step for login in a multi-pages form, i tried to use a modal login form like LoginWithAjax plugin, with a link inside my form to make the modal panel show. Tue problem is that if my gravity form is ajaxed enable, it redirects automatically to the classic login.php page, else i can see my login panel, but no ajax action is fired, so no login at all.
Have you ever make a user connect during filling a gravity form, and can you please help me doing this ?
Thanks a lot!