I'm trying to follow the CAPTCHA customization; replace the numbers with words to try and elude the spambots a bit more.

The instructions say to input the following line in the "template":

{$captcha.number_1 | replace:"1":"one" | replace:"2":"two" | replace...}

(Added spaces to post this topic.)

Can someone tell me where exactly I need to put this? I've tried template.html, lang/english.php, captcha/captcha.php without success. Thanks in advance!