Blame Apple if you have an iPhone. This sort of presentation also couldn't work on a small phone, though a text list version should be provided for mobile users (is it?).
I hope the author checks out something like Raphael (JS SVG library) and converts it though, because Flash is definitely tacky.
In all seriousness though: I simply wanted to learn Flash. As an iPhone user myself, I realize its frustrating that it doesn't show up. That being said, even if it did show up you wouldn't be able to make much of it because of the screen size and the sheer business of the chart. It's really meant to be viewed in a normal browser.
No, the other one is sort of a horse race, which is neat. Maybe show the top sites and their ranks over the past five half hours/full hours in a narrow table that would work in any browser.
I hope the author checks out something like Raphael (JS SVG library) and converts it though, because Flash is definitely tacky.