kernel-mode hook and active trojan

My Internet Security scan shows I have an active trojan, something "script", that infected my computer on August 9, 2010.

I downloaded the Virus removal tool today and re-scanned. It didn't find the trojan, but it found something else, a kernal-mode hook that apparently go into my computer on 6/23/2010. Internet Security is not detecting that one at all.

So there are 2 active different infections? one from 6/23/10 and one from 8/9/10? I need some help. thanks in advance.

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Please tell me how to quarantine. I don't see that option in Virus Removal Tool program. sorry for being so avg illiterate.

Hi,
I found nothing malicious, but:
- You system is very vulnerable + Microsoft doesn't support Windows XP SP2. Pls. install Service Pack 3 + all updates + Internet Explorer 8
- KIS 7 isn't supported anymore, pls. install any modern antivirus solution.