There are several ways this could be accomplished. I would suggest that you create a new group in NT user manager that doesn't include those users and then replace the
Everyone group in the WWW service policy with this new group that has all the same policy features as the old
Everyone group had. Then create a new policy for each of these users with the same time restrictions and authentication levels as the new group policy and in the
Advanced tab set filters for
each site you wish to allow them access to. See
here The
Everyone group includes all users and groups so if you create another policy for a user then WG has to look at both policies to determine access rights and the one with the least restrictive policy will prevail. You found this out when you tried to put a more restrictive policy on a user. This sometimes can come in handy though.