When I was testing the Kindle fix, I found something else.
On IE 7 and the Kindle, the Sidebar Menu icon (the 3 bars), and the Soundcloud icon both break.
Using inspect element, I see the following:
Working images show DECODE as the theme.
Broken images show CHILD as the theme.
I don't know why this works in most browsers. WordPress must be doing some kind of redirect. But, older browsers don't like it. And, it seems that most of your images show DECODE and not CHILD. So, I am assuming this is an easy fix on your end.
Let me know if I can be of any other help.