Sergash: There are two Christian Braun, which one played the actual game?:Christian Braun, international master since 2012, German player born in 1986 that had become a FIDE master in 2008. At the time of the actual game, he was 15 or 16 years old. In 2016, he is rated 2381 and his peak rating was 2424 in May 2015.
The other is also German, Dr. Christian Braun, untitled and born in 1967. He was 33 or 34 years old at that time and is still rated 2243 in 2016.
The rating given to Braun by Chessbase during that game was 2203. Carlsen was 10 years old and rated 2072.
I checked the game with the program Komodo 10 - 64 bits.
<7...Ba6> Interesting: in the first game of that same tournament, Carlsen had played 7...Bb7 here. (See G Kacheishvili vs Carlsen, 2001).
<10...Bb7N> Apparently this was a novelty at that time, though there are several possibilities ahead to go back to known lines. Other than that, there was 10...c5 11.0-0 Rc8 = Etienne Bacrot (2425) vs. Viktor Korchnoï (2645), Cannes Team Match (France) 1996, round 1, 0-1.