i think i need this disc for my car, ive just bought a vectra 1.8 sri 06plate, but it doesnt have the disc for teh navigation system, does anyone know where i can get 1 cheap and how much they are? i was told their able to download and i searched on google, and found this forum, but it brought up a page of how to use the navigation system not a link to download it from id appriciate any help here since im new to all this stuff and would like to get my hands on teh disc somehow

dave