Check out the following link will tell you everything you need to know about your Navigation.
http://www.xoutpost.com/articles/all...ystem-faq.html
The upgrades that are available to you won't change how you interact with the system unfortunately, so if you find it difficult and inconvenient to use now, it will remain that way after you get up to the newest software version.
If you don't like using your navi, I would recommend buying a Garmin or something like that to mount to your dash and use that, or if you want to get brave, remove your stock navi and put in an aftermarket one.