PHPnuke theme/logo/graphics design for a major website

Hello, I run a major website called [login to view URL] I have designed the whole website by myself, but still feel that it needs to have that professional touch. I would like to have a new design of the compelte website and also the logo, including graphics wherever required. This includes 800x600 or 1024x768 optimization (depends on the opinion of the designer), and new ideas to display our contents in a more reachable way to the audience. I am looking for an excellent PHPnuke theme/logo/graphics developer who has very good project record in developing professional websites. He/She will be working on a long-term basis on new projects if I am satisfied with the work (keep getting lot of projects for my other websites). Delivering the project in a timely and professional fashion is highly solicited. Please visit [login to view URL] to learn more about the website including the BrainCert Testing Engine™, to develop a great design which is highly interactive, fast loading and user-friendly.. Our website runs on PHPnuke 5.5 customized and tightly integrated with BrainCert Testing Engine™ and OScommerce. Please register and navigate the website and take a test (our website deals with online exams) to see how the new design may fit the Testing Engine without any loading issues. A great designer with whole lot of ideas would deserve the price he/she bid for.