Ipod Second gen Version 4.2.1 Hidden file problem (running on windows) HELP!!!!!!!!?

i can only see "internal storage" on my computer when i plug in my ipod. and in the "internal storage there is only the pictures that i've taken nothing more. I did make it so im able to c the hidden files and ill i still c is internal storage and screenshots ..... im running a jailbroken 4.2.1 second gen on a windows7plz help