[CaP bUsTa]

I need help fixing my brothers computer which has been fucked up by a virus. Lately over hotmail there has been a screen saver virus going around under different names, and my brother, being the 13 year old child he is, opened the one entitled "Britney Spears Strip Dance". Low and behold, after he opened it his interent connection was terminated. Now i have no idea how to fix it. He has xp and gets virus definition updates but because there is no connection to the internet, he cant get them. How the fuck do i fix it so he doesnt keep whining and start using my computer more and more.