When I allow a default user on the authorization settings I can then no longer get to a logon screen. I am on a unix server which I think is the problem. I have tried to modify the auth.cgi with advice from someone else but this still doesn't work.
Is there any know cure for this?

$auth_no_authentication = 0;
$auth_allow_default = 1;
@auth_default_permissions = (1,0,0,0,0);
$auth_signup = 1;
@auth_signup_permissions = (1,1,1,1,0);
$auth_modify_own = 1;
$auth_view_own = 0;

Basically I want to anyone to see the database but people who are registered can update their own files.

Admin can do anything.

Help!