I had my first litter of baby Jacksons born on 12/16/2010. They are now about 17 weeks old and are up to about 4 1/2"- 5" and are doing great. I don't keep them in glass tanks as some people insist, I keep them in fully screened cages just as you would adults. I use a small 5" aluminum reflector dome clamp fixture to keep about an 80F basking spot, 18" 5.0 UVB light and lots of climbing branches and some artificial vines placed right below the basking spot and some at a lower level right at a spot where an ultrasonic cool mist humidifier is piped into the cage. I also have a mist system placed to drip across a large portion of the upper vines. Kinda elaborate, but the basking spot, UVB light, plants and the humidifer are necessities. These are the first babies Jacksons I've ever raised and I'm quite gratified with the success I've had with them so far. There are other opinions or approaches for raising them- it's up to you. Do some searches on here. I personally don't use glass tanks- they have poor drainage that requires multiple cleaning/draining per day if you have a mist system. Mine have no trouble finding food in a larger screened cage and if it is a requirement for adults I don't see why it shouldn't be for juveniles as well. Just my opinion, and it seems to work for me so far.
I don't know how easy or difficult it is to obtain flightless Drosophila hydei fruit flies where you are, but I would strongly recommend starting several cultures going for them. Once you have them producing flies, they require very little work to maintain them. However, my Jacksons grew so fast that at about 6-8 weeks of age, they would require twice as many flies per day (up to 30-40) than when they were first born. Even though they are extremely prolific, it became impractible to continue giving them these tiny flies. I then had to start raising crickets again, and you probably won't want that headache. I would think that 10 cups of the 32oz. size would produce enough for 10 babies. You can find these cups at Dollar stores for about 3 for a $1. I would start by buying about 20 of them. Start 10 cups, about 8-12 days after you start to have flies emerge, start 10 more. There is debate about how much supplementation montane chameleons should recieve, so I have stuck to dusting with Miner-all O formula (no D3) only every 6 days, but after every 3rd dusting (roughly once every 24 days) I'll substitute the O formula with the Miner-all I formula with D3. Montanes are supposed to be more prone to over supplementation problems, so I try to be very 'reserved' when using dustings. Instead I try to focus on using a very good gutload high in calcium and vegetable based protien by feeding my crickets lots of turnip greens and a good dry gutload I make myself with high levels of spirulina based on research I've done based on some of Sandrachameleons great blogs as well as a few other sources. I'll say again, there are others out there with very different approaches to raising Jacksons babies, and I'm sure that they all have had different levels of success, but this approach has worked very well for my first litter of babies. Hope this has helped. Best of luck. As far as the injured baby, that's a tough call. One of mine had a tongue problem and had to be hand fed. I didn't think she was going to make it, but she has since gotten stronger, is feeding on her own and is finally starting to catch up with her brothers size. You never know, yours might have a chance.
...is there anything I can do for it? I feel utterly horrible for not having been there to prevent this from happening. 
