Very straightforward manual, thank you!
I configured my Wl-500gp according to it with the last versions of the packages, added admin password, used exactly the same smb.conf file (with my IP address but I cannot see shared disc neither from WinXP nor from Win7. I also tried Samba installation by simple command
ipkg install samba36
but nothing works. I can see smbd and nmbd running:
  151 admin      1976 S   /opt/sbin/nmbd -D
  153 admin      3600 S   /opt/sbin/smbd -D
  165 admin      3480 S   /opt/sbin/smbd -D
but that is all. Would you have a hint for me what I can check?