For installing and setting up eyefinity:
Remove your old drivers first before installing the card.
Then install the card and use only one monitor to install the latest drivers from AMD (and test out the card a little). Using one monitor isn't necessary but I recommend it for the first startup of the card and for installing the drivers the first time.
After the drivers are installed and you can see the card is functioning properly, then shut down and hook up all your monitors using the configuration in my post above.
Boot-up. Usually the BIOS startup screen and initial windows loading screen will only appear cloned on two of the monitors.
When you log into windows, open CCC and go to the "AMD Eyefinity Multi-Display" section and follow the instructions for creating an eyefinity group.