|Geez - you got about everything wrong.|
1. You posted on the wrong forum because this is not a question about the CPU itself. If the CPU is overloaded it is either to do with what you are running or, as you suggested, a virus. It should have either been posted on the XP forum or the Security forum.
2. You completely ignored the BIG message on posting, saying that you should not post an HJT log unless requested, so the post will probably be removed.
3. You used an outdated HJT (the current version is 2.0.2).
For the heck of it I ran an autocheck of the log on here:
You do appear to have at least one virus. The results also concluded that you have no virus scanner and maybe no firewall - both are essential and are available free.
some other bloke...