.png fix and media query problem

Hello,

I have been working on making my website work for mobiles and I've been using my partners Nokia C3-00 which works, however the website is not showing correctly on my friends Blackberry, of which I presume is due to a png problem where the hills and grass is meant to be shown.

http://www.facebook.com/ajax/messaging/attachment.php?attach_id=a92f92420741e41edbfce8718a6fba91&mid=id.249394738521858&hash=AQCSB6D5ZvNcNL8p

The above is an iPhone 4 view of the website, of which does not seem to be displaying the correct view for the width.

http://sunlightgardenservices.co.uk/index-new.html

The above is the website URL.

Best Regards,
Tim

Okay, so I've tried to change it to an image and it will not display on the Blackberry. It will not even display the grass....