KI-Media (via an anonymous reader) has posted photos of the serious damage at Preah Vihear. They have it spread out over several posts:
Part 1 (Gopura II and III), Part 2 (Gopura III), Part 3 (NW of Gopura III), Part 4 (More at Gopura III), and Part 5 (Gopura I)
It appears that my earlier post was incorrect, it was not Gopura V that sustained the most serious damage, but Gopuras I, II, and III. For reference, here is a photo of the Gopuras from KI-Media.
Here are a few photos from KI-Media showing some of the damage of Gopura III
I photographed this part of Gopura III on my first visit to Preah Vihear in 2007 (at this point it was still accessible from Thailand). Here is a photo of the same part of the Gopura in 2007 and happier times.