sat nav question...

[scooby_doo_do]

I've had my sat nav for a while now.. Its the older cd-rom model (not dvd)..

I was just wondering if anyone has an instruction manual around for it... as i'm starting to use it a little more than normal, and i don't know what 1/2 the buttons on the controller doo...
Also, is there a way i can enter postcodes or not ? if there is i haven't figured that one out quite yet...

Thanks in advance...

Craig,

[Supragal]

I don't know about cd based ones but the ipaq ones don't use post codes- presumed it was something to do with limited storage though?