You can't write to NTFS drives. You can only read them.
Read this for NTFS. Scroll down to the place were it describes " Accessing your NTFS partitions". Just ignore everythinhg else.
The syntax for vfat partitions is essentially the same as NTFS. You just replace ntfs with vfat for the filesystem type.
If you still don't understand something post again and post the entry you are trying to add in fstab.