okay, the directions are vague. do i have to remove the tile wall in order to install the tub surround? there is some tile damage around the tub spout. do i repair this, remove it, what? and obviously i have to remove the soap dish, but what do i do about the hole that leaves? also the backing behind the one totally loose tile is mush, how ugly has my 4 hour d-i-y project now become?