[denti]

#3: go to start-> settings -> system -> external GPS
com 4
hardware is none and 4800
check mange gps automatically

note that this gps chip isn't that sensitive so if you're indoors it'll prolly not work.

your volume problem: i have the exact same problem and am trying to figure out it myself. i beleive some newer roms has this problems fixed as when i installed juggalo's rom, the volume works. juggalo's rom also fixed my 1+ problem as well.
so in short, if you try and install juggalo's rom, it *might* fix alot of your issues. at least it did for me from the stock telus rom
take care