@ncube2
The link to the map index was given to you by catymag in reply to your previous post. In the index is the link for NA maps. Also best read/re-read the thread in the other link Caty gave you as well.

As for the authentication error, you actually quoted the answer by mr.moch in your previous post:
Quote Originally Posted by mr.moch View Post
... well, to remove the authentication error, you will hafta either 1) download Firewall iP from Cydia (requires a jailbroken iPhone) or 2) edit the hosts file to block Garmin's servers (again, requires a jailbroken iPhone). ......