Ubuntu :: Samba Installation With Access To Guest Users

All I want is a simple Samba installation that anonymous users/guests can access. I have modified the smb.conf file so much using 'tips' that should enable a simple folder share. Nothing works. If I share the folder using Nautilus share then the folder is accessible without any credentials from only Win7 and android ES File Explorer. XP can't see the folder, nor can any other linux device. I want to switch to linux as a main OS but without shares it's not practical. Does anyone have a stripped down smb.conf which provides guest access to a single folder?

Here's the latest testparm -s
Code:
$ testparm -s
Load smb config files from /etc/samba/smb.conf
rlimit_max: rlimit_max (1024) below minimum Windows limit (16384)
Processing section "[printers]"
Processing section "[print$]"
Loaded services file OK.
Server role: ROLE_STANDALONE
[global]
workgroup = MSHOME
server string = %h server (Samba, LinuxMint)
security = SHARE
map to guest = Bad User
obey pam restrictions = Yes
pam password change = Yes
passwd program = /usr/bin/passwd %u
passwd chat = *Entersnews*spassword:* %n
*Retypesnews*spassword:* %n
*passwordsupdatedssuccessfully* .
unix password sync = Yes
syslog = 0
log file = /var/log/samba/log.%m
max log size = 1000
dns proxy = No
usershare allow guests = Yes
panic action = /usr/share/samba/panic-action %d
path = /home/mint/Shared
read only = No
create mask = 0777
guest ok = Yes

[printers]
comment = All Printers
path = /var/spool/samba
read only = Yes
create mask = 0700
guest ok = No
printable = Yes
browseable = No

[print$]
comment = Printer Drivers
path = /var/lib/samba/printers
read only = Yes
guest ok = No