How to get the original theme back in KDE?

[fossiili]

I tried to configure my KDE desktop. I used the KDE tool to change the theme testing some. After that I found that the one I liked most is the original after installation. I installed Sabayon 3.4e using the DVD from Linux Magazine November 2007.

How to get the original back? The only thing I wanted to change is to get the strong red color on the top of the windows to for ex. the gray color.

Please, help me! I promise never to try that again
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Later I managed to get my favourite background picture back:"Alien Night"

And I dair to go on