Bouncing Ball rig confusing.

Hello everyone. I have try 20-30 times today how to make a ball bouncing from David Wards tutorial.
http://www.blendercookie.com/2010/09/29/creating-a-bouncing-ball-rig/
and his tutorial is easy to follow until he tell me with shift key down, select Top + Center bones, and with Ctrl + Shift + C = select Track To. My result (2) dont behave and look like his. (B) Look at my screenshot and blendfile. I doing somthing wrong but I dont know how to solve this.
Maybe you guys can advice me.
Thanks in advance
Karl
http://www.pasteall.org/blend/4806

http://i1023.photobucket.com/albums/af353/Spender19/Skrmavbild2011-01-17kl005426.jpg

Sorry. David Ward say Stretch To and not Track To as I chose.
This is better. http://www.pasteall.org/blend/4809
Sorry for that.
Karl

Sorry. David Ward say Stretch To and not Track To as I chose.
This is better. http://www.pasteall.org/blend/4809
Sorry for that.
Karl