I would say follow fordeck's link and advice in putting the Windows partition in /etc/fstab since you are most likely using NTFS.
I would be careful about following T. Shrinivasan's advice because he is assuming you have your Windows partition formatted using the FAT file system.
The reason you are unable to view your Windows partition is because Ubuntu is mounting it as root due to the NTFS permissions, therefore you would not have access to view it as a plain user. You could, as root using SUDO, view the Windows partition. Best way is to just integrate it into your /etc/fstab and allow users to read off of it. Problem solved.