Combining a CAPTCHA with a CreateUserWizard control

I have a working registration page and I'm adding CAPTCHA.  The CAPTCHA works and I have a simple if/else loop to do what happens if the CAPTCHA input was correct or incorrect.


if (Page.IsValid)
        {
            feedback.InnerHtml = "Correct.";
            //I would like to put something here to process the registration -- CAPTCHA was done correctly
        }
        else
        {
            feedback.InnerHtml = "Incorrect.";
        }


I want to write something in the if/else loop that will enact the registration.
Therefore, ...