Ringtones are super easy, you can put them in a folder on the SD card and have them always there. Drop them into SDcard/media/audio/notifications & ringtones only thing is they need to be .ogg files.
Also Poynt & BeWeather installed just fine for me, I am not going to test more apps since I will just be removing them but, I would be fairly confident it is on your end.
Voicemail should be setup, he added a setting that would automatically set it up for you.
Also.... Newest Google Maps seem fine here using navigation :\ Same with the actual Maps app.