The technical turn order is also the order the teams appear in the login screen. Since I haven't gone there, can't comment on what it is.
Yes, such turn order exists. It is determined by in which slot (from top to down) each civ is set when choosing civs/leaders to make the game in the beginning. Just as Dave said, the turn order can be seen in the login screen - those on top are those first in the turn order and those down are later. The turn order is used to break few ties. Some of them minor and negligible (like who is in the higher position if few teams have equal points) or it may be game changing (like if two teams come to something like building a world wonder, finishing technology which gives religion/Great Person/free technology in the same turn).I didn't even realize that a turn order existed with Simultaneous turns.
WPC got three points for growing to size 3
CivPlayers got two points for growing to size 4.