Web Application Needs New Skin

Need the front end of a web application re-skinned to look more professional. Need corporate look and feel. We would prefer 2 or 3 skins if possible. It shouldnt be too much as everything is CSS and the classes are already set up (for the most part). We just need a more graphics oriented person with experience in professional front-end development. Its just a few button and background graphics and stuff like that. A demo version of the application is located at [login to view URL] user name - testuser password - password