Small Drupal 7 Tasks

My drupal 7 website needs a few small things done: - add captcha module and get it working on the comment form and the contact form. I tried adding it but it didn't work for some reason. - modify the top of the theme so that an image ([login to view URL]) can display behind the top box and the google banner ad displays lower down. (see attached image screenshot for example) - upgrade the chaos module to the latest version - go through all 400+ nodes and check the html renders properly - in some of them they need <p> and some other tags to make them look right.