This manual is for Aardvark Topsites PHP 5.2.x. Manuals for other versions:
5.2.x | 5.1.x | 5.0.x | 4.2.x | 4.1.x | 4.0.x | 3.2.x
When members try to join your topsites list, they will be asked to copy a short series of letters and numbers from an image into a form field. This blocks the automated spammers that have attacked some topsites lists.
If the images don't work, then it is a problem with your server. You must have the GD library installed. If you do not, then you cannot use word verification. You can turn word verification off by logging into the admin and going to the settings. If you are having troubles with spammers and word verification is not supported on your server, you can try approving members before they are listed. This option is also available in the settings in the admin.