How do I display a "Thank You" message after submitting a Webform 3.x form? I recently upgraded a Drupal 5 site to Drupal 6.  This upgrade also entailed upgrading the Webform module from version 2 to version 3.

I have a very simple webform setup that asks for a name and email address to sign up for a newsletter.  Before upgrading, the webform administration area had a textarea labeled Confirmation message or redirect URL, but I no longer see this option.

When the form is submitted, it just reloads the form with empty values.  The form is submitted properly, but I would like to be able to present a "Thank You" message instead of reloading the form page.
From the webform node, click the Webform tab, then the Form Settings sub-tab. There should be a large textarea labeled "Confirmation message".

If you are on node 1, the URL would be example.com/node/1/webform/configure.