@matt0323
you can simply flash back the required FS and there you haf it
@herc
jus try to connect it to some other computer. i don't think there's any problem wid the phone. i guess the mass storage drivers on ur computer are messed up. try to remove this device from device manager (in windows) by enabling the hidden devices option then let it install the usb mass storage driver again. do your other mass storage devices (usb hdds, flash drives) work properly?