MacOS – NTFS mount issue in Lion

This is the reason why you can't share your NTFS drive from OSX to Windows: In OSX Lion Apple replaced the open source samba with apples own version which unfortunately ignores anything that isn't hpfs. So it hasn't anything to do with your drivers or such.

This topic was discussed at length at MacRumors. The proposed solution is to install XCode and MacPorts followed by

• sudo port install samba3
• Navigate to /opt/local/etc/samba3 and modify smb.conf to your needs
• Disable File Sharing in System Preferences
• Launch smbd & nmbd daemons: sudo /opt/local/sbin/smbd -D && /opt/local/sbin/nmbd -D
• To have smbd/nmbd launch automatically during boot you may also need to add an appropriate launchd file.

tar is installed as part of the system utilities, the only way it can be still an old version is if you upgraded your OS in place since before Intel days, or if you have an old version of tar sitting in your PATH that is being invoked before the system one is.

First, run which tar in shell. If it says anything other than /usr/bin/tar, it's not the system-native version of tar, and you should just remove it because it's not working anyway.

If it does say /usr/bin/tar, try running lipo -info /usr/bin/tar. The output should look something like

$ lipo -info /usr/bin/tar
Architectures in the fat file: /usr/bin/tar are: x86_64 i386 ppc7400 

If the architecture list does not include x86_64 and i386, then you definitely have old versions of system utilities which are not compatible with Lion and should be reinstalled. Probably the easiest thing to do at that point is to run a full backup of the system, and do a clean reinstall, because this situation should never occur and if it is happening, there's no telling what other system utilities are broken.