M-A-Styles

Thx for this great mod!
I tried to add topic Icons, But its not working..
Can you please tell me how I can add those topic Icons?
I tried this:

<!-- IF S_SHOW_TOPIC_ICONS or S_SHOW_PM_ICONS -->
<dl>
<dt><label for="icon">{L_ICON}:</label></dt>
<dd>
<label for="icon"><input type="radio" name ...