Different Background in a page

Hello,

I want to make a certain page from white, transparent background and the overall website background to something else! See picture below:

my website is http://new.cyprusgamer.com/ and i want to edit this page only:
http://new.cyprusgamer.com/index.php/ga ... nds-ladder

Hi, sure this should be easy.
Use one of those free extensions from JED:
- HD-Background Selector (hyde-design.co.uk)
- HD-Custom CSS (hyde-design.co.uk)
- Add CSS (gibilogic.com)

I can get them working! any ideas?

I can get them working! any ideas?

Did you check it? All works, I used them. What's the problem they should work with J2.5.