Struggle to install this in rails3

[ccastel]

Hi,

it is very unclear to me how to install this in rails3.
Bootstrap works fine with smaller icons.
I do a @import "bootstrap"; in my CSS

But then I don't know what to do with this bootstrap.icon-large CSS
I tried to import it as well, to no avail, and placing the CSS and PNG files in my public/assets doesn't help either.
I tried rake assets:precompile, but the icons remain stubbornly invisible.
I think some instructions are lacking for installing this with rails3 with assets pipeline...

Any help would be appreciated