Medion GoPal GPS system re-install.

hi guys,

as i have no experience with gps devices, but i want to fix one problem, im sure you guys can help me.

first of all, im running medion gopal E4440 – and as i have readed i tried to install miopocked using external sd card(2gb) i do all correct but after i instert sd card gps just restarts, without any prompt asking.

my questions,
how to reinstall windows CE here?
how to install miopocker 4.0 or something similar?

how back my navigation to work?