Hello!

im a complete newbie and trying to enjoy my 2 day old garmin nuvi1450 i got from a friend who installed 2 maps in the unit. Looking from the map info i see that the maps file name are Philippine Roadguide and the other one is Osm_phil.

can someone please answer the following:
1. are these maps and/or files updated, how do i check?
2. how do i save other maps/file in my unit? where do i get them?
3. what is the best road map file available, how often do i update them and what process do i make to update the map file.

thanks and more power!!