The above header image is currently being slid about with the Header Image Slider plug-in. This is a set and go option with the Twenty Eleven theme so no need to hack around in the header.php file. It is currently running on the random option which will show the various slides and fades available.
I just noticed that we have reached 9000 spam comments.
Setting the [wikipop]FTP[/wikipop] upload to your own domain (as opposed to the built in Skitch offering) took a couple of attempts.
The Directory setting requires yourDomain/directory and the Base URL requires the full URL to find the images. The above example assumes you have created a directory called images to store them in. Skitch uploads the image then reads the full URL for you to copy to the clipboard….http://www.yourDomain.com/images/someImage.jpg