In your hosting account cPanel go to public_html/wp-content/themes/classipress/includes/theme-functions.php..Make sure to do a database back up of your site in case something goes wrong.
In your hosting account cPanel go to public_html/wp-content/themes/classipress/includes/theme-functions.php..Make sure to do a database back up of your site in case something goes wrong.
You may find this thread helpful http://forums.appthemes.com/show-three-3-columns-home-ad-categories-32242/
if i`m not mistaking there is an unlimited number of child categories.
