How to Add Custom TwentyTen Headers for Each Category
If you’re using the TwentyTen theme for your WordPress site and utilizing custom headers, there’s a new plugin available that will allow you to assign different headers to each category. TwentyTen Advanced Headers lets you have a custom header for all other pages while making use of page specific custom headers.
Simply enter a header URL into each of the boxes on the plugin’s settings page and your new headers will start showing up immediately. TwentyTen Advanced Headers is available for free in the WordPress plugin repository.