Modify Wordpress Form.

Here's the form I want to modify <[login to view URL]> I want to transform this form(with a better design than existing one) in a form divided into 4 steps. Each step involves a new page showing some specific fields. **Maybe you understand better what I want to get with this example**. Fields marked with "*" should be mandatory. After completing these fields the user can be sent to the next Step. First step: Give the user a choice between sending your ad without registration or recommend the user to register. - If the user decides to register: Send the user to the registration page. - If the user decides to submit his ad without registering: Send the user to step 2. When the user is logged the user should not see this step and go directly to the second step Second step. In this step the user must complete these fields "*" Category "*" Name "*" Email Phone Url third step In this step the user must complete these fields. "*" province "*" population "*" Address step Four In this step the user must complete these fields. "*" Description images This step must include the box to highlight the ad as premium, as you can see the original form. Once the user has completed all the fields would be fine the user has the option to preview his ad before sending the ad for publication and if the user is unhappy with his announcement to give the opportunity to make changes... is this be possible?