Did you have already installed EPEL repository?
http://ftp.tlk-l.net/pub/mirrors/fedora-epel//6/x86_64/epel-release-6-5.noarch.rpm# rpm -ivh epel-release-6-5.noarch.rpm
Preparing... ########################################### [100%]
1:epel-release ########################################### [100%]
# rpm -ivh --test rpmfusion-free-release-6-0.1.noarch.rpm
Preparing... ########################################### [100%]
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