To test if all is working you must edit the botdefense/verbot.php file. Simply add "//" before the following lines:
$out="<span class=\"something\">\n";
and
$out.="</span>\n";
After this load the page, you should see an input field in the top of your page, enter a value in this field and hit enter or click anywhere on the page (not a link). You should be redirected to thankyou.php your ip should be recorded and the value of the counter increased.

You can also receive an e-mail notification with the submitted fields, check here: e-mail notification