Are there any freeware programs that i can download that extract the vocals out of a song so its instrumental?

no, but you can do it yourself though. if you have the instrumental and the real song, and they are both equal in quality. load both into a recording program such as adobe audition or sumthing like that and make sure they line up exactly. then invert the instrumetal and if its lined up exactly and they are both the same quality the beat in the real song with the vocals should be canceled out by the instrumental. hope i helped