Stuck Between a Rock and a Hardspot

Ok, I have a dilemma. I know this kid one year younger than me, who has had it rough. His dad died when he was young, his mom was insane and this person did not want anything to do with her. So he was put into foster care. He grew up in a very scary place and was passed place to place in foster families, all of which didn't want him and passed him on to the next family. Right now he is living with his aunt and uncle. This has been the best place for him so far, and I am sure a Heaven on earth. His aunt doesn't want him anymore and will start sending him away on the weekends back to the scary town so that she doesn't have to deal with him over the weekend when he is not at school.

I really feel called to help this person, and I pray for him everyday. I wish for nothing more than to find him a good christian home. He needs Jesus in his life, and I don't think that he can find Him alone. How do I help him? I keep coming to the thought where we could adopt, but I cannot ask my parents to do that. I do not think that this will be a solution, but I wish it could. He deserves a good home and family.

There is also another problem. I have a friend who seems to be in a pickle. The other day I realized that she was always starting to be really tired on the bus in the morning and afternoon. I couldn't figure out what was wrong. Then I realized that she was not eating her lunch anymore. This has been going on since a little while after Christmas break. She has also been ignoring one of her closest friends. Instead she has been hanging out with the "pretty, popular, and trying some not so good things," girl.

I think I am going to talk to her. If you have any suggestions, please tell me.