Knoppix handles setting up and mounting drives automatically for you because it is designed to be as simple to get running as possible. More traditional Linux distributions don't always do that.
You need to figure out which device this NTFS filesystem lives on (the output of "fdisk -l" usually helps) and then mount it manually with a command like:
mount /dev/device /mnt/mountpoint
You will need to create mountpoint
under /mnt as well, since it is currently empty.
To make this permanent (and have it done at boot) you would enter in the final information into the /etc/fstab file, which controls the mounting of filesystems system-wide.