Hi !
You can also try the application called CWSHREDDER.
This is an cool web search trojan remover. You can fid it on
http://www.spywareinfo.com/~merijn/downloads.htmlthe spybot search & destroy 1.3 is good, if you cant remove with this one use it in safe mode or choose the option to remove trojans on the next reboot.
One of the good programs for get rid of this trojans which change a search page is the tool Hijackthis, but if you plane to use it, read first the help file. You can find it on the link listed above.
Good luck.