Drupal 7 MultiStep Form I am trying to implement the Multistep tutorial (Step 9) from http://drupal.org/node/717750 in Drupal 7, however in the following function

function my_module_my_form_new_name($form, &amp;$form_state) {
  $form_state['storage']['new_name'] = TRUE;
  $form_state['rebuild'] = TRUE; // Will cause the default submit function
                                 // to be skipped.
} 


I just cant set the $form_state['storage']['new_name'] = TRUE;
therefore i can't catch it in :

 if (empty($form_state['storage']['new_name'])) {
    $form['new_name'] = array(
      '#type' =&gt; 'submit',
      '#value' =&gt; 'Add another name',
      '#validate' =&gt; array('my_module_my_form_new_name'),
    );
  }


I can however declare it in the beginning of the function, which can be executed fine. So how can I set it in Drupal 7?
Helpful links for creating multi steps form are https://drupal.stackexchange.com/questions/135/are-there-any-examples-of-setting-up-multistep-forms http://drupal.org/node/717750, and http://drupal.org/project/examples.

I practiced multi step forms by getting the code of the form tutorial from http://drupal.org/project/examples, and added further steps; it works excellently fine for me.