Unless I missed it, the author didn't give any hints on removing this tracker. So in the interest of all, I might suggest a couple of tools which you can download.
SPYBOT-locates and removes malicious spyware at the users option. There is also a feature you can enable to have it start automatically. spybot.com
AVG - along with their anti-virus software, they now have an anti-spyware product. Download and test for free at avg.com
I have no knowledge as to where either of these addresses this particular issue, but you'll be amazed at what they do find.