If your computer is not part of a domain, you have to open Computer Management, click Start, and then click Control Panel. Click Performance and Maintenance, click Administrative Tools, and then double-click Computer Management.
You should see a folder that says users. Just right click and add new user.
If Win2k3 is part of a domain.
Open Active Directory Users and Computers.
In the console tree, click Users.
Active Directory > Users and Computers >
Domain name > Users
These are the basic ways to manage user accounts.