Replacing the Getbusi logo on redirect pages
By placing HTML and div tags in the custom error messages in System Properties -> Messages you can overlay the Getbusi error message.
For example if you place the following HTML into one of the custom error messages, click on Apply and then the corresponding Test button, you will get a good example of this:
<div style="position: absolute; left: 0px; top: -16px; color: black"> Hello World </div>
You could, for example, overlay the top of the page with a white background or your own images/logos and then place your own text within the page.
To change the graphic you must overlay an image as outlined above.