Missing Local Users and Groups

I have recently installed a Windows SBS Server 2003. So, after the setup was done, I wanted to add a user in Local Users and Groups from Computer Management but I am not able to find the Local Users and Groups icon. Is there anyone who can tell me where to look for same? Thanks for any information.

Through the Active Directory, you will be able to manage users and groups. You can try Admin Tools >> Active Directory Users and Computers, or the Server Management console.

There are no local users/groups on a domain controller? Any other suggestions? Thanks

You just need to go to Start and then Administrative Tools and then Active Directory Users and Computers.