Listing user with common "profile_state" fields

hey there,

I've seen on a few drupal website that they can list users with similar profile setting such as "profile_state" (for example "Nottingham").

I've got the profile module installed and have serveral user profile fields such as profile_state, profile_city etc.

However, when I enter the URL ..../profile/profile_state/Sample I get a "Page not found" drupal error message.

What do I need to do/activate to be able to use this feature on my site too???

Thanks
Kai