Page Error with Captcha

Hi,

I am using Zen cart 1.38a with both Ultimate Seo and captcha installed, i have a error on the Write a review page which is blank and i have done a check with myDEBUG here is the error:

[09-Apr-2009 22:19:39] PHP Warning: require(includes/classes/captcha.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home//public_html/.com/shop/includes/modules/pages/product_reviews_write/header_php.php on line 52

[09-Apr-2009 22:19:39] PHP Warning: require(includes/classes/captcha.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home//public_html/.com/shop/includes/modules/pages/product_reviews_write/header_php.php on line 52

[09-Apr-2009 22:19:39] PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Failed opening required 'includes/classes/captcha.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home//public_html/.com/shop/includes/modules/pages/product_reviews_write/header_php.php on line 52

Thanks if you can help. :smile: