What I did was on the NT Web server I added a button to browse the operators, a button to change login, and a button to change password. Then you enter you users there and after you enter a user change to that user login, then change the password to the desired password. I also put this same method in a external desktop application that manages some of the web server data files so I can manage users from there. On the web login side you might have to hide all but the login tab.
In this same application I have a user register form that the user fills out and I create the login and password from that info. That same information also becomes his or her user profile. Not sure if this process will work for you but this is what I needed for my application.
I hope this helps you.
Ray Abadie
Lafayette, La.