After restarting samba, I can now browse to the tholmes folder, as well as the two other shares (html and www), but I cannot write to any of the, nor can I FTP files into them -- I think we are making progress, and I suspect that at this point we have a permission problem that needs to be resolved
Try running the "smbstatus" command on your samba server after connecting to it. It'll show the current list of connections, including the usernames it is using. Check to see that it's got the right username and isn't using the guest account (e.g. "smbnobody").
Paul.