hi,
one thing i miss was security. You can create winnt/2000 users with active directory users and computers then in enterprise manager ->security -> logins. Create new login in the name field click ellipses (browse) and select newly created winnt user account click ok. That all to it, you have configured winnt user account to authenticate to sqlserver. obviously, you can set propery security permissions for the newly created login.
bye
miq