For whatever reason, it's not working to display the content.
A pop-up window should appear, with a Flash program that displays the beginning of the book. I don't know how your web browser treats pop-ups, but if memory serves me correctly, you don't care too much for Flash. Either of those could be the source of your problem.
The popup window does popup, everything seems to load except the text.
But it working now. Maybe a glitch on the S&S site.