I set up a simple share by editing the smb.conf file.  This
includes the following changes to the installed version.

workgroup = LAN1   (a valid Windows 98 "workgroup")
guest account = guest

[public]
  path = /home/shared
  public = yes
  only guest = yes
  writable = yes

I've added a new user named guest and created the directory
/home/shared

then ran the following:

chgrp guest /home/shared
chmod 770 /home/shared
chmod g+s /home/shared

/usr/sbin/smbd -D
/usr/sbin/nmbd -D

The shares will be visible to the Windows PCs and iMac with
version 6.0, but not with 6.1.  If I reinstall 6.0 it will
work fine.  Uninstalling Samba and reinstalling the
previous version does not help either. ?????