First, I would move the eggs a little more towards the center of the container. Condensation dripping down the sides of the tub can get on the eggs if they are touching. It is perfectly OK for the eggs to be touching each other. The moldy egg does not look like it is going to survive to me, but I'd leave it in there and leave it alone until positive it isn't going to make it. It looks like it got too wet. I know some people advocate using foot powder, but I prefer not to use any chemicals on eggs. The best thing you can do is leave them alone. The more stable the environment the better, IMHO. The windows do look like they either did not calcify correctly or they got wet. Make sure there is plenty of water in the bottom of the tub and keep them in a stable environment. Ensure that your fan is not blowing directly on the eggs, but gently moving the air around inside the incubator. Also, be sure you have a good seal on the incubator so that the humidity level stays high.

Good luck, hope that they all make it out of the egg for you.