Downloader.small – What is it?

Hi!
I have a client running Windows XP, and AVG antivirus repeatedly finds a virus it calls Downloader.Small. Each time VG finds it, it “heals” the infection and all is OKI for a day or two and then the infection is found once again. I have searched the internet high and low in search of a removal method, and have not been able to find it. Infact, I have not been able to find out much about it at all except that it is some sort of trojan. I do not know if it is related or not, but my client mentioned to me that the trojan did not appear until after he had installed Kazaa (which is now uninstalled…….) Is there any possibility that this trojan is bundled with Kazaa? Any and all help will be appreciated!

Thanks!
Rock Lobster