Cant see files in TV mode (cyclone hd 1TB)

When I browse the hard drive there are no files there when the TV is hookes up, when I hook up to the PC there they are. There was a small file on the hard drive when i got it and a movie, but i deleted them when connected to my laptop (vista), I wonder should i have deleted this file! (doh!) was this the firmware? should I copy it back on? If so where do I get it? Also.... Why is the disc partioned to 2 500GB HDD's, can I make it one big HDD (1TB)...? Any help very much appreciated.

P.S. I should tell u it was working when i got it. (darn it!)