I can reproduce the problem with the "Maintain proportions" settings. I will have a look at that and will try to get a service release out at soon as possible.
Regarding the custom header and footer fields. You need to enter complete HTML code into those fields. To include an image the code would look like this:
<img src="urltoimage" alt="My logo" text="My logo" />
To include a mailto link it would look like this:
<p><a href="#">Contact me</a></p>
Please note that "#" should be replaced with "mailto:youremail" (the forum's formatting messes up the code).
Edited by: kristoffer on 26-Oct-2009 10:59