To minimize any ambiguity:

As a general rule, if the match goes to Ace and one of the teams does not want to reveal their Ace player publicly, you should get a neutral party (ie. an admin, or someone from another team, or some random ICCup user) and pm them with both Aces. If no one cares, then that's pretty obvious - just announce and go.

For uploading the match results, you have two options:

1) both coordinators input the players yourselves (the first 4 sets must be reported before this), and then upload the replays. If this is the case, the player who sets their player second should upload the replay as well (assuming they have it). However, both should check when the choose their player, and it IS the winner's responsibility.
2) You can email cstarleague.com@gmail.com with all of the match results, including what schools were playing, replays, individual set results, who played in the ace match. The more info you give us, the less work it is for all of us.

Any questions, post below.