How to change page title on /relationships page?

I am trying to change the page title of /relationships from 'My relationships' to 'My contacts'. I have gone through the first set steps 1-3 on http://drupal.org/node/361657#comment-1424780 by putting the two functions in template.php file and renaming and also copied the two tlp.php file to my theme. I made the following changes to tra_preprocess_user_relationships(&$variables) (my theme is tra)

if ($account->uid == $user->uid) {
    $msg = $relationship_type ? t("My %contacts") : t("All my contacts");
  }
  else {
    $msg = $relationship_type ? t("%username's %contacts") : t("All %username's contacts");
  }

  $variables['title'] = t($msg, array(
    '%username'       => $account->name,
    '%relationships'  => $relationship_type->plural_name ? $relationship_type->plural_name : $relationship_type->name
  ));

The page title of /relationships still says "My relationships" instead of "My contacts".
Is this not the way to change the page name? Do I need to do something else?

Thanks for your help - Nancy