No problem :D Glad to help!
I'm not sure that moving her to the window is such a hot idea though. Because its a 1/2 gallon bowl I can only assume there is no heater. So the heat from the sun could cause the tank water to fluctuate to much, not to mention deplete the oxygen in the water and cause a huge algae boom.
Red gills are healthy gills, but if they look really inflamed and noticeable then all I could think it is, is irritation from the ammonia. If I am correct and it is in fact poor water quality causing your problems.
If he is having trouble eating, swimming, breathing, anything. Its probably your water parameters. Like does he hang out on the bottom a lot? Or at the surface gasping for air? Clamped fins? Anything like that is an indication of poor water quality. So I would do a water change, just to make sure. Until it is possible for you to get your test kit.
Good luck!!! Post your new water parameters asap, so we can help your fish :D