After mounting a Windows SMB share, how can I determine the windows "creator" of a file?
AFAIK, you can't get the ownership properties of files on SMB/Samba shares on anything other than Windows. Mac OS / Linux implementations of Samba don't parse that info when reading the share, most probably because of the differences in how the extended attributes are stored between the OS's, and that the Share properties are determined by the hosting system and are locked down to prevent network users from altering the properties of the Share.