CAPTCHA control- how to redirect

I went to a link provided on this forum on CodeProject for a CAPTCHA control.

This is the link: http://www.codeproject.com/KB/custom-controls/CaptchaControl.aspx

I have downloaded the code and its working fine.

I am new to real coding in asp.net and I cant figure out where I would deal with what happens once the code is verified to be correct i.e. I want it to fire a function and then redirect to a new page.

 Where do I put in this code?

Thanks
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