Main site http://www.ensembl.org/index.html
-> links to http://www.ensembl.org/downloads.html
-> links to http://www.ensembl.org/info/data/ftp/index.html
There, the EMF link leads to:
ftp://ftp.ensembl.org/pub/release-66/emf/ensembl-compara/epo_6_primate/
(chromosome 11 is there, too)