The latest xmms build references mirror://gentoo/gentoo_ice-xmms-0.2.tar.bz2 as one of its sources, but only gentoo_ice.zip appears on any of the mirrors. I don't know if this is just a case of the mirrors getting out of sync or what, but I thought I'd submit a bug just in case.
you're right, I forgot to copy it to the mirrors. thanks for the nudge. while it makes its way across to the mirrors, I'm placing a copy at http://dev.gentoo.org/~seemant