Been trying to get Samba working correctly for ages in Windows 7.
Thanks to Burnham and THIS thread managed to get it working.
1) Menu > Setup > System > Network > Samba Setup > Install Samba.
2) Find your workgroup name, see here
Code:
http://windows.microsoft.com/en-gb/windows7/join-or-create-a-workgroup
3) FTP to /etc/samba and edit in smb.conf the line below:
workgroup = vix <<<< THIS MUST BE THE NAME OF YOUR WORKGROUP!
Example, mine called WORKGROUP so line should be:
workgroup = WORKGROUP
Big thanks to Burnham