Not sure what 'Upload' does.
Same as Upload in Colud Saving - uploads save to cloud.
'Quests' shows a list of all(?) quests, naming only completed ones.
Yes, it shows all quests, including 3 quests from chapter 1. So, after finishing all quests in chapter 3, 3 blank spaces left.
The coordinates update when the map cursor is moved, but only over discovered rooms.
You mean it doesn't show coordinates of undiscovered rooms? Dunno about ps3 version, but on Vita it shows coordinates of any room...