14.04 - Cannot install new omega driver from AMD

Hi all I'm trying to install the new omega drivers for Ubuntu 14.04

AMD Catalyst™ 14.12

But the ubuntu software center is complaining "Dependency is not satisfiable: fglrx-core"

I'm downloading this package.

http://www2.ati.com/drivers/linux/fglrx_14.501-0ubuntu1_amd64_UB_14.01.deb