em99010pepe did you register the ChessBrain PeerNode Client by going File - Register and enter your e-mail address?
What did cjus say? Have you tried the CB forums?

ps. Don't bother with the version 2 stats on the official page, they are out-of-date. Instead use 3rd party stats. Magnavox (from Free-DC) has excellent stats. You're 9th on Magnavox's ChessBrain stats page:

http://mag.chessbrainstats.com/team.php?team=59