Well with poclbm gui with extra flags set to "-w 64 no vectors" i boost speed up to 17-18 Mhash/s thanks
Now i'm use only my gpu, right? cpu is not used?
How i can use my cpu now at max?

P.S. is there some possible damage to cpu/gpu due to const 100% load? i need check my cooling systems right?

How many you mine in well 8 hours of non-stop mining?

How many time it cost to mine 1 BTC? is it worth it?