I plan on installing a new HDD in my xbox(more noob questions on that later

) First I want to create a backup of my C drive on my PC. I have successfully set up a FTP connection and have been transferring files from my PC to my Xbox. When I go to explore the Xbox's partitions, I can see the basic(C,E,D...)folders. When I go to explore one of these partitions, I cant see the contents inside of the folder. Any help or advice?? Thanks!