I have installed the free version of Komento - 1.5.3067 on my site. I have tired various other versions also on my site but none of them have Captcha support and thus no anti-spam support and there is nothing in the back-end where i can add any Recaptcha key. I have searched across the komento forum and a few say that we need to integrate the key. I don't get it can you please tell me how to enable captcha???