This is quite strange and I really hope it's no user error. Ok, visit above URL. What one should see is a image inside a link and "some text" also linked. But what I see with current Mozilla nightly and also 1.7 is only "some text" (I inserted the text to show that only images inside the link get hidden). I tracked it down to <a href="downloads.html">, if I use <a href="download.html">, <a href="downloadz.html"> or <a href="whatevertarget.htm"> I see what I should see. BUT this occurs only when the page is viewd on the net, not if the page (and the picture) are viewed locally.
You shall not file bugs yoo didn't test in a fresh profile before. Now I did and found out Adblock was the reason for the weird behaviour, sorry.