all is good but i don't see any graphic eq in the spectrum analyser. is there a way to fix this ? ty

What do you mean "no graphic EQ in the spectrum analyzer"? Where do you see a spectrum analyzer in the vid of it on their web site?

when i open it with savihost.exe , it's all good. i see the yellow line in the middle of the spectrum. but it's not analyzer your right.
 
but now when i open it with sonar, there's NO yellow line i can't see what i'm doing there.

I don't have that plugin so I'm not an expert on it to say the least. But I wonder if you have a signal going through it? Audio playing? Also what version of Sonar are you using? 
 
I think that yellow line is a form of spectrum.

yeah signal audio is ok. the eq works but i can see what happening in the spectrum. im using X2

I tried the Surfer EQ demo in X2, and I could never get it to work without crashing Sonar. So you seem to be doing better than I was.
 
However, I think the problem may be related. It worked fine when the plug in wasn't displayed, but as soon as I  opened the plug in window, everything would become laggy and unresponsive and Sonar would crash shortly after.
 
So I suspect there is something going on in the way SurferEQ draws it's UI that Sonar doesn't get along with. I contacted Sound Radix and they didn't know what the problem was.
 
Shame, as it's a brilliant plug in. If I could get it working in Sonar, I'd buy it in a heartbeat.