Now the fglrx driver is available in testing repos it can be installed .Since its in testing repos it is not recommended.
Older Guide: http://fglrx.djsh.net Older Guide’s Install Script: http://installfglrx.djsh.net

Make sure you have rpm-fusion repo installed

rpm -Uvh http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm

Install Driver using yum

yum --enablerepo=rpmfusion-nonfree-updates-testing install akmod-fglrx xorg-x11-drv-fglrx xorg-x11-drv-fglrx-libs.