... Nothing? Maybe...
It's not linked from the page http://yearzero.nin.com/, but there is also http://yearzero.nin.com/img/86.html as well. It appears to be identical to http://yearzero.nin.com/0024/. I suspect that they're revealing links over time, so this may be forthcoming. The JPEGs of the album cover from 86.html and /0024/ are byte-for-byte identical, but named differently.
--[[User:justnine|justnine]], 12:48 07 March 2007