CSS cleanup in Wordpress blog

I need a CSS coder with a flair for design for this small and straight forward project. I expect it will lead to other projects. I have a Wordpress blog that utilizes Semiologic Pro (SemPro) software to enhance Wordpress with about 75 plugins. I need a few specific items done. See [login to view URL] 1 I have created an ad in Coffee Cup but SemPro is interfering with the clean look of the ad. I need the CSS cleaned up so that the ad looks proper and the links work. 2 I have created a sidebar ad that needs to be made to work. 3 I would like the inside sidebar to be separated from the main column and have its own border so that it looks like I have three distinct columns, main, space, inside sidebar, space, outside sidebar. 4 I need a very simple header, probably without graphics. I have only two lines of verbiage in the header. They need to look more professional. Thank you, MitchG10