willovercome, I think he snuck one past you. His question said, "Does pro tools LE have the abilty to turn off certain tracks or channels or wahtever in the stereo (italics mine) so that you can do things like remove vocals or drums?"
I think applesmasher's talking about taking an existing stereo file, already mixed, and removing the vocals from it.
If that is the real question, the answer is basically no. Under certain conditions you can remove much of the vocals, depending how they have been mixedr and how dry they are, and how alone they are in their frequency space. But almost all instrumnets will have some frequencies where the vocal area, so if you cut those frequencies, you also negatively alter the sound of the remaining instruments.