SIMPLE SUCCESS PAGE
This is the confirmation page that will appear in the form poster’s browser after they press the submit button and successfully submit the form.
You can use a more advanced success page, with a separate more powerful module.
If you are not implementing the above success page follow the below instructions. Note that these instructions are different since you are taking a different approach.
If you don't want anything to advanced simply create a html success page and upload to your server like a traditional html page. From there you would use the following tag to access it.
<input type="hidden" name="success_page" value="http://www.yourdomain.com/mysuccesspage.html">