Mac Mail like application toolbar
===

I'd like to create a toolbar like in Mac Mail or Finder. The problem is that I can't make it aligned or even I don't know if I'm doing it right.

Here's what I want:

![Expected result][1]

Here's what I have. The above example is perfect for me, button are aligned to the "Red/Yellow/Green" window buttons. I want it to look exactly the same way. I have the images that will reside inside the buttons.

![Current result][2]


  [1]: http://i.stack.imgur.com/2nrje.png
  [2]: http://i.stack.imgur.com/CyUoz.png