All I see is three slides that tell you nothing. Either this site is broken or has one of the worst designs I've ever seen.
They aren't very convenient, but keep in mind that the slides are merely a byproduct. They are in a form that was designed for giving the presentation, not in a form that was designed for reading on the website. The speech is missing. I tend to prefer video recordings of talks (like confreaks) to looking at slides by themselves.