samba - Dec 2002 - Add Win2kPro Workstation to new Linux PDC

I created a new virtual Linux server running the Red Hat v7.2 distribution.
After getting a MySQL/PHP application running, the next step was to add a
Win2kPro Workstation to a new Linux PDC. Towards that end I modified the
smb.conf file as described below to turn the virtual Linux server into a stand
alone PDC. A 'MACHINE.SID' was created in the /usr/local/samba/private
directory. Additionally, I created some Linux users and populated the smbpasswd
file with them. When I now try to use the Network Identification tab of my
workstations system properties to add it to the domain, I get an error dialog
indicating that the computer cannot be added to the domain because 'the
account used was a computer account. Use a 'global user or local user
account to access this server'. How can I make one of the accounts that was
used to populate the smbpasswd file a 'Global User' in SAMBA?

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[global]
        smb passwd file = /usr/local/samba/private/smbpasswd
        wins server = 172.16.0.121
        domain master = True
        encrypt passwords = yes
        max log size = 0
        interfaces = 172.17.60.6/255.255.255.0
        printer = BHRSHP1
        comment = Treasury Printer
        username map = /etc/samba/user.map
        path = /var/spool/lpd/BHRSHP1
        printing = lprng
        update encrypted = Yes
        postscript = yes
        oplocks = no
        valid users = @Treasury,@illingsk,@ehmann,@wheel
        socket options = TCP_NODELAY
        admin users = @wheel
        logon script = %U.bat
        writeable = yes
        map to guest = Bad User
        domain admin group = @wheel
        domain logons = Yes
        printer admin = @ntadmin
        server string = Samba %v  PDC on (%L).
        workgroup = COFRNY
        delete readonly = Yes
        netbios name = COFR3
        log file = /var/log/samba/%m.log
        load printers = No
        logon drive = H:
        os level = 64
        locking = no
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