WHY??
You can OC with ATITool just fine with 0.25 Beta 14.
Uninstall CCC.
Disable ATI Smart and ATI HotKey Poller in MSCONFIG.
Then raise Vcore on the GPU to 1.425. Thats the stock voltage at 3D clocks. Max you might have to go is 1.6v if you clock really high. Be sure to set fan to 45-60% at all times to keep the card cool and your ears safe.