you have something going on for sure , I've seen a log with all the html like text in the 04's before but its been a few years ,so, i will move you to the spyware and viruses section .for help .
edit: you are using an outdated hijackthis you should get ver 1.99, and post a new log .
http://www.downloads.subratam.org/hijackthis.zip
caperjack
I hate 20 Questions
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