Sorry about the loss of your eggs. 
Sometimes you can see something wiggle inside the egg, and sometimes you can even see the egg wiggle when hatching is about to happen.
You didn't say what kind of eggs...so I can't tell you what to get to feed it for sure...but pinhead crickets would be okay if its a veiled or panther chameleon. The chameleon will be okay for a day or so after it hatches without food...but I would get them soon..just to be on the safe side. If you gutload the crickets, they should do well for some time.
You said the egg has windows (wondows is what you actually said) and is sweating, so the baby should make a slit in one end of the egg soon (in a few days at the most). It should poke its head out of the slit and will likely lay there looking dead for any where from an hour to a couple of days. It should get out of the egg when it has absorbed the remainder of the yolk without your help.
Once its out of the egg, you can put it into a cage with some branches and well-washed (both sides of the leaves)plants. I usually cover the soil of the plants with small stones (too big to be ingested). I DO NOT recommend any substrate be used (so there is no chance of impaction) and I recommend that when you water it you mist the cage and make sure that the water doesn't pool into large droplets or pool elsewhere in the cage. Babies have been known to die from aspirating water into their lungs.
You said..."You are all going to hate me but what Temp should I have it at when born? I know how to deal with the adults but not the NB"...no yelling here. Generallly its best to keep the hatchlings at more moderate temperatures than the adults. Little bodies cool/heat faster than big ones and they can also dehydrate more quickly.
Hope all goes well with your egg!
