I cannot activate my ATI/AMD proprietary FGLRX graphics driver (post-release updates)

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http://askubuntu.com – I have recently have upgraded to Ubutnu 11.10 and I have not been able to activate by ATI Radeon Mobility HD5400 driver. I have been able to activate the ATI/AMD propreitary FGLRX graphics driver using the AMD wiki, but I cannot activate the (post-release update) driver. I have looked all over the internet and almost everyone says to use the command: sudo apt-get install fglrx-updates fglrx-amdcccle-updates When I use this though, my driver is no longer recognized as being active and I am back to square one. Does anyone know what to do? (HowTos)