Ok, other Garmin Oregon 450 owners: I now have my new unit and it's ready to be set up for Geocaching. I've done the quick start and visited the Garmin website to register it, but now I'm not sure what I'm doing. When I run a query for caches on Geocaching.com, then what do I do? I'm a bit lost and of course the quick start guide is pretty much only helpful for putting in the batteries and turning it on. Help!Spiritwolf922