Be sure to have an alias listed in the general tab. I had this problem and as soon as I listed an alias, the email addresses tab showed up. Just make the alias their username and you should be fine.
One of the really exciting new ones is the concept of the read-only domain controller. Before with AD, as compared with NT 4.0 in particular, every domain controller has a writable copy of your...
Active Directory is called active bacause it is actively
updating it's data through replication from differnt sites
and other domain controllers with in the network