[Samba] samba PDC problems

[David "3oz" Sonenberg]

I'm trying to set up a samba PDC. I've been following
the directions in "The Official Samab-3" book. I still
don't understand how to add users! I'm using tdbsam
and I set up all the add user scripts and what not in
the smb.conf. pdbedit won't let me do anything unless
I add the user with adduser(what's the point of the
scripts?) and even when I add the user by hand I get
this error message. 

[root at samba samba]# pdbedit -a -u test 
new password: 
retype new password: 
Unable to open/create TDB passwd 
tdb_update_sam: Unable to open TDB passwd
(/etc/samba/secrets.tdb)! 
Unable to add user! (does it already exist?) 

I'm sure I just understand the process and none of the
docs seem to explain it clearly. Any help you can give
would be appreciated. Anyway here's my smb.conf: 

[global] 
netbios name = SAMBA 
workgroup = WORKGROUP 
passdb backend = tdbsam:/etc/samba/secrets.tdb 

# Scripts 
add user script = /usr/sbin/useradd -m %u 
delete user script = /usr/sbin/userdel =r %u 
add group script = /usr/sbin/groupadd %g 
delete group script = /usr/sbin/groupdel %g 
add user to group script = /usr/sbin/usermod -G %g %u 
add machine script = /usr/sbin/useradd -s /bin/false
-d /dev/null %u 

os level = 33 
preferred master = yes 
domain master = yes 
local master = yes 
security = user 
domain logons = yes 
logon path = \\%N\profiles\%u 
logon drive = H: 
logon script = logon.bat 

[netlogon] 
path = /var/lib/samba/netlogon 
read only = yes 
write list = ntadmin 

[profiles] 
path = /var/lib/samba/profiles 
read only = no 
create mask = 0600 
directory mask = 0700


		
__________________________________
Do you Yahoo!?
Yahoo! Mail is new and improved - Check it out!
http://promotions.yahoo.com/new_mail