I am a co-administrator of the web site http://saint-albans.org and we are using WordPress 3.5.2 as our Content Management System. One of the site's other administrators wants us to change the banner on the site's home page. However, in reviewing the WordPress dashboard, I can't find a way to access/change the banner. The web page theme we are using is located at http://vandelaydesign.com/blog/wp-themes/zion-church/ How do I go about removing the existing banner and uploading the new one? Thanks for any advice!