How to edit a confirmation page

To edit the confirmation page for your web form:

Navigate to your web form site in the Site Content and Structure view and select the Pages folder.
Scroll over the confirmation page name and from the drop-down menu choose Open Link in New Window.
From the Site Actions menu, choose Edit Page.
The Page Content area is where you can add or modify headings, contact information, and the confirmation text.
When you are done making adjustments, Check In, Save and Close, or Publish your page.