Why don't you just start a topic called "Ask me, I'm an expert!", and then you let people post a statement. This statement is then, as soon as possible, forgotten. The point is to go off topic, and answer questions that hasn't been asked.
I would follow the fingering that Lelle gave... Where you can't play it well, you can probably skip a note or so. I doubt that the jury will mind. I think the point is to see how well you can cooperate on short notice, and not how fast you can learn to play an A-major scale in thirds... Oh, I'm sorry... To play the piece you actually posted.
If you have time, try to have the melody in your head, so that you know that you are able to listen to her, while you play. They probably took a piece like this to find pianists who looks on the whole picture and not getting stuck in playing correct notes. (obviously, the best thing would be to play it note perfect, and being able to listen. But if one has to choose, listen to the singer, and being able to make music together, should always come first)