Re: Unknown Samba Password
You can also use ssh. There's a few ways to do it--I know that KDE's konqueror browser can--I think you use something like fish://<other_machine's_ip>. Nautilus, the default Gnome browser, can probably do it too. Probably easier than setting up samba.
Actually, I think you want encrypted passwords--the guest machine is probably expecting that. (On the other hand, I've never tried to do what you're doing--accessing one Linux machine from another with samba, nor tried to set it up through the grapihc tools, so I'm not sure about that.)