I followed the steps of this guide and it doesn't work.

I've entered the following command and I had an output with dependencies error.

sudo dpkg -i fglrx*.deb

So I tried with gdebi instead, and it works. Now fglrx & fglrx-amdcccle & fglrx-dev are installed.

The next step is Generate a new /etc/X11/xorg.conf file, but I can't do this due to the following reason:

When I enter sudo aticonfig --initial -f the terminal show me this output:

sudo: aticonfig: command not found

I've installed the packages correctly or not? What I have to do to fix the problem?

NOTE: I've not uninstalled nothing (drivers, config., etc.) before beginning the installation.