Do you see those RED lines I surrounded with WHITE? Those show that your signature is way too high, more exactly 310x160 pixels, the limits being 500x150. To fix this, you need to re-size the picture. Luckily for you, I already re-sized the image and made it 291x150 pixels, enough to fit in the rules. All you have to do is to copy paste the code in your signature control panel.
Edited by miromiro, 14 April 2013 - 04:02 PM.