Just track the person who is DDossing you and send send them
http://sub7.net, Basically trash them up bad. Even when you ddoss the packets are still being sent from there ip, get it and send them the server file. then you will have full access to there computer and totally make there life hell. You can reboot there computer disable there keyboard have a private chat with them. anything you name it even reformat there hardrive lol. Well, just read the stuff there of course after you get there ip

Good luck!