Can you link to the page you’re trying to add the header to? Usually there’s going to be some sort of header container defined in the markup (HTML) of your page, if you’d like to add an image easily to that you can either add an <img> tag within that container, or set the dimensions as you need them and use the background property in your css to show the header image that way. If you’d like the header text to no longer appear, you can either remove it from the markup or use the text-indent property along with a large negative value (like -5000px) to remove it from the block. (assuming it’s a block element itself) I hope that helps and good luck with the blog… if you have that link I’d be happy to get more specific with your theme.