It wont help, 3 years, it will surely be out of date.
I've had the same virrus. The virrus basically hi-jacks your home page and displays stupid messages using the XP update thingy.
I got rid of it by using avg and a little know how. You need to start the computer in safe mode, and edit some registry keys. Theres a site i'll show ya that will help you, its probs worth printing the instuctions since you wont be able to access it in safe mode.
Go to this website, read the summary then click advanced, start up in safe mode, copy the files on the advanced sheet to a new folder and rename them just in case you need them again.
http://www.sophos.com/virusinfo/analyses/trojz lobbc.html
If you need more help, post back here.
Good luck