your problem is not the scroller. your problem is line 182 in application.js, which shows right away in the error console.
your application .js uses .live(), and you are using the latest version of jquery which no longer supports .live, it should be changed to .on()
I highly reccomend you learn more about using developer tools in chrome , or firebug in firefox etc. take a look at this http://fixingthesejquery.com/#slide1