CSS3 Sprite Images not showing

Hi,

I created a template for an HTML website and for the footer I am using CSS3 Sprite images so that I use classes to call one image rather than using multiple images. Here is the template on this URL - http://testingnew1.comule.com/ . The CSS3 Sprite is in the footer above the links below.

The CSS3 sprite should appear like the link below.

http://mywebprojects.net16.net/

Could someone help me please, I don't know what I am doing wrong.

Kind Regards,

Ronny