The latest version of mythreads should have a captcha right? I installed and everything works, but the security code doesn't show up.
So, I'm wondering if someone can tell me how to get the security system working that comes with this script?
You could try to display a captcha with the URL: http://yoursite/index.php?sec_img=144f3bbd
Do you see the captcha ? Any error messages in your logs ?