Someone please correct me if I'm wrong, because I've never actually seen babies who have just emerged from their eggs, except in pictures, but from what I understand, newborn babies, who have just hatched, have an yolk sack attached to the underside of them, and usually won't eat until this has been absorbed, which may take a day or two. However, you do need to provide them with some source of fluids, in order to make sure that they don't become dehydrated, which can happen extremely quickly to the little ones.
Once their yolk sac has been absorbed, then you will need to provide them with pinhead sized crickets 3 times a day, and let them have as many as they will eat within a 15 minute period. Any that aren't eaten should be removed from their tank until the next feeding. It is extremely important that they be well fed at least 3 times daily, and given an adequate amount to fill them up, or they will turn on each other and start biting off tails and limbs, if they are not given enough food to keep them satisified!
At that age, pinhead crickets may be all that they'll eat, since most won't try any sort of veggies until they're much older. It is a good idea to expose babies to vegetables by offering them, but most won't eat them until they become a bit larger, as juveniles, and even then some won't try them until they become adults.
Babies should also be separated by size, with no more than 5 to a tank once they're removed from their incubator, or the larger ones may attack the smaller ones, especially if you allow them to become too hungry. And all tanks should have the proper lighting and temperatures, just as a tank for an adult would!
Hope this information helps!