ADULT MATERIAL - modify colors of my php forum trought style.css

Hi I own a adult forum setup with simple machine forum. I want to change the colors of my forum, now is blue, and I want it black. you have to visit my adult website, use firefox/firebug to look at [login to view URL] and make colors modifications the main color of the forum must be black #000000 some parts can be in grey, you can use 2-3 different greys all text should be this color #FF9900 there are also few images to modify, please look at [login to view URL] file and tell me which images do you need. I will upload here for you. I will do personally the FTP connection. I cannot give you FTP connection. the website is [login to view URL]