oh, yah, we're pulling down our jquery from off-site, so if you have noscript or some other aggressive same origin filter, the youtube scripts won't run until you whitelist them
austere derives from the same template as nostalgia, so if austere has issues with your browser and plugin setup, nostalgia should have the same problem..
can the people having trouble try to reproduce the problem with windows 8 or macos and a current browser version with no plugins and cookies wiped? i want instructions to reproduce the problem on my end with the most straightforward possible configuration -- that will point to the error (more likely some dodgy trick that is fine in some versions of chrome but not in firefox or IE..)