Additional Header Image, like a ribbon or something

This can be done by adding some code inside header.php. Find the end of the header div, usually started with the ID of header: <div id="header">

Insert code like this to define a new div with an anchor tag link enclosing an image URL:

<div id="top-ribbon">
   <a href="http://yourdomain.com/yourlink/" title="Your Title"><img src="http://yourdomain.com/wp-content/uploads/ribbonimage.jpg" alt="Your alternate text" /></a>
</div>

Then, add CSS to style.css to position the image:

div#top-ribbon {
    position: absolute;
    top: 0;
    right: 200px;
}

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