Doesn't work without user relationships

Using Advanced Profile in a muilt-site setup.

I installed your advance Profile Kit as well as the required modules but getting error that system can't find user_relationships table. So I read here about error and went out and downloaded UR but before I enable, would you know if this table should be in my shared db or left in the main db.

At the moment this is the prefix setup in all my settings.php files. (am I missing any from Adv Profile?)

$db_prefix = array(
'default' => '',
'authmap' => 'drupal_shared_tables.',
'profile_fields' => 'drupal_shared_tables.',
'profile_values' => 'drupal_shared_tables.',
'role' => 'drupal_shared_tables.',
'sessions' => 'drupal_shared_tables.',
'users' => 'drupal_shared_tables.',
);

Thank you for any help or direction you can give me.

Mark Saltmarsh