That's good news Jay.
1) - not sure what that does. I would instead select "create waypoint" and give it a name. Then pop up the waypoint list, select it and hit "goto". Before you turn it off next, do a "save waypoints to file" so it's there next time.
When I get back to one of mine I'll give "track GPS" a go, but I think it just turns tracking back on (the map follows your progress).
2) I presume you mean the PC version? Yep, download and install it to your PC, then either connect the device to your PC or take out the SD card and put it in a reader connected to your PC. Then find \OziExplorerCE\Maps on the card and copy the contents to C:\Program Files\OziExplorer\Maps (or wherever you installed Ozi). Then you'll be able to load all your maps in Ozi on the PC for planning, waypoints, routes, etc.
Because I haven't flown your way yet, I have no waypoints in the MainWays.wpt file. On your PC, you could create all the waypoints you think you'll need and save them to that file (or your own). Then transfer the waypoint file to the SD card and they'll appear in the list. It's easier to create them on the PC than on the Mio (the on-screen keyboard is a bit fiddly).
There is another waypoint file on the SD (allWays.wpt I think) which I created out of a list MapTrax included with some maps. It should have the main ones.
You're welcome.
I have 2 more units which I'm planning to take to Natfly ready to go - if nobody wants them before then. Maynard (robinsm) grabbed the 3rd today for his first long trip in the X-Air.