Just for the record, I have applied the "security = share" thing and it works... but I lost the authentication for other shares. Or more correctly, authentication is just sort of screwed up. (I also added "guest ok = yes" as well.)
I am using SME 7.x fully updated and installed the advanced samba stuff.
My purpose for wanting to do this is so that my Argossy HV335T media box can access files form my SME server without too much trouble. That part is working...but it breaks too many other things.
Anyone know if this is possible in SME 8.x? I was testing it before but not with this purpose in mind. And the time that SME8 has been in beta has been frustrating to say the very least.