PHP CAPTCHA Code Configuration

Hello, We have a fully working HTML-PHP form handler that records values to a My SQL database and? passes several of the values forward into a shopping cart. I am trying? to implement a CAPTCHA code process from "[login to view URL]" that works fine on some of my other form processors. Please see <[login to view URL]>? for example. My problem is that the? CAPTCHA code is invalid? even when we? enter ? the correct? characters. I am fairly certain that this is because the PHP session is not set correctly and this will be a simple fix for? an experienced programmer. Depending on the winning coder, I would prefer to send the PHP and HTML files for work rather than allowing site access. Please let me know if you have any questions. Thank you, Blue Force Media? ? ?