@punk: thank alot man, 
@mugen: in the fourth pic from top, you see a document with circles on it.. i guess thats the one.. it has a code mentioned on it.. and since i am not much of a high-fi user.. all i can tell is, in your default settings, if you slide to right from your home screen, by default there is a navigation slide.. in that you enter in the menu, go in options, from there, in second slide to your right you will find an option to enter voucher code to activate navigation.. hehehehe its a vague answer i know.. but i am not that tech guru of a person when it comes to smart phones..