Enable R/W support of ntfs in Mac Snow Leopard

First, Type diskutil info /Volumes/volume_name in the terminal

Then copy the ntfs volume's UUID

Backup /etc/fstab

Type sudo nano /etc/fstab.

Type UUID=paste_the_uuid_here none ntfs rw or LABEL=volume_name none ntfs rw

Repeat for other NTFS partitions.

Save the file

restart

done