Congratulations
wow.. :o :o :o :o .. that's the only thing I can say.. it's just so beautiful, touching.. and I really never knew this things happen in real life,, so congratulations I'm really happy for you. When I first read your post, I almoust cried.
So now you have an older brother. How old is he, if you don't mind the question. And do you feel angry or bothered by the fact that your parents have kept this a secret for so long? I don't really know what I would do in your position but I probably wouldn't be angry. If my parents didn't tell me then they sure would have their reasons.
So it's really cool that you have a brother now, especially after the fact that you're an orphan.. I mean now you're like a perfect family now:D