I just received a new Garmin 60CSx today.I received a cd that was entitled "Trip and Waypoint Manager." I downloaded this to my pc.My question is do I still have to download something from Mapsource on my computer in order to be able to download topo maps onto my gps? Also if so would anything I download conflict with the "Trip and Waypoint Manager"? Other than having a Garmimn etrex I am a newbie to mapping gps equipment.Thanks.