The header will have to be height:80px; min-width: 775px; max-width: 100%; and the background will repeat so if the image is to short it will get repeated. If the image does need to be repeated it will have to look like it is not repeated. Also, it will have to be for a web hosting directory so it needs to be on that topic. Do you know where I can get one from. It also needs to be red, but I guess I can change the color myself. Where can I purchase one from? I'll thought I'll ask here as it is to do with html/web designing and you guys have probably needed these yourselfs before. Thanks!
If you need an image, try looking on Open Source Web Design. For stock photography, check out www.sxc.hu (free stock photography - licenses vary with each image, so be sure to check each one).