You have to create an account on your Win2000 client :-
Username 'admin'
Password 'Server's admin password'
The admin account, by default, is the only account able to edit the primary ibay. This worked on previous versions of e-smith but I haven't tried it on v5. Should be the same though.
I sure there's a configuration file on the server you could edit to give a particular user write access to the primary ibay, but again I haven't tried it yet.
Hope this helps
James