Ok, sounds like your off to a good start. The window shouldn't be to hot, as your indoors, and it should be cooler inside. Try to get a lighter soil, or add some perlite to it to loosen it up. I've never personally done it from a window, so I can't garantee great results ( I use grow lights), but you should get some form of result, as long as they get good light. Make sure you rotate the pot every few days, so the
plant doesn't grow lopsided.
For food, I would recomend you get something a little better. I don't like miracle grow for vegetables indoors. I find it's too strong. You need something you have better control with. I personally use General Hydroponics brand, Maxi-gro, and Maxi-bloom, for all my
plants.