Ok, finally finished it so you can change the images in theme 5. If you log into the home inspector pro website, on the left is a link for Website Images under the Home Inspector menu. Under that you can find a PSD and JPEG version of the header image as well as a link to GIMP a photo editing program. You can edit the header however you want but the dimensions (width x height) can't be changed. Remember that you can control the text that appears in the peach area in the top left from within the website itself so you don't need to add text physically on to the image. It's better to do it from the site (though not necessary).

You change the image by going to your themes configuration and browsing for a new header (and/or footer) at towards the bottom. Clicking reset to default will replace the images with the originals.

Enjoy, let me know if you have any questions.