If you are working a lot with the NTFS partition, perhaps you want to make normal users able to mount the unit. Yo do so, you need to modify the /etc/fstab file.
Let's say that you mount with
mount -t ntfs -o ro /dev/hdaX /mnt/Y
Notice that I put a "-o ro" as it is not recommended to write in a NTFS partition. Then you have to add
/dev/hdaX /mnt/Y ntfs noauto,ro,user 0 0
to your /etc/fstab file.
I don't have ntfs partitions, so I don't know it you need additional options when you mount a NTFS unit. If so (as you say you were able to mount it) add them separated with commas to de "noauto,ro,user" part.
I hopw this helps you...