Install the ntfs-3g package for read/write access which should also install some dependencies.
Then make a directory to access Vista in your Linux file system, unmount it in case it's mounted, then mount the Vista partition in read/write mode manually with commands similar to:
$ sudo mkdir /vista
$ sudo umount /dev/sda1
$ sudo mount -t ntfs-3g /dev/sda1 /vista
Your Vista partition should now be accessible via /vista with a file browser or through command line, assuming the Vista partition is the first partition on a SATA drive, otherwise change "/dev/sda1" to whatever is applicable.
I'm not sure, but I would think Ubuntu will automatically edit /etc/fstab file to enable read/write access upon re-booting to the Vista partition using ntfs-3g. If not, you'll have to search Ubuntu forums for a more precise tutorial for installing ntfs-3g.