Captcha Image not displaying the graphic

Hey,
I’m using a captcha image (at least I would like to) but it’s not displaying the actual image as you can see at http://www.wssunaa.org/index.php?id=84
The image is part of the wonderful WebLogin Pirates Edition default template.

I presume that one of the server modules is not installed on the clients webspace. What does the captcha image need to generate an image?

Thanks,
Taff

You need php_gd2 extention enabled in your php settings.

Thanks MotSmart!