Drupal 6.2 using Views, Profile Module and CCK.

We have defined custom fields to add to User Profiles (i.e. organization name, age, etc.), and a view is created to allow exposed filters to search through User Profiles, however when we access the Page display, it shows only posts and does not show any filters.

One thing I have noticed is that in Content Type, there are no defined fields for Profile, however we have defined many fields for the User Profile. When we are configuring the view, all of our Profile fields are displayed as options and filters, yet why does it continue to say "No fields have been defined for any content type yet." in the Fields tab?

Hope this makes sense, it has been a frustrating day wrestling with this! Many thanks for your help.