Here's what you do: pull the paper off the self-stick tile, smoosh into place, sit back and admire. Discard paper.
Being a perfectionist, I paid attention to the design on the tile, not wanting accidental alignments to ruin their fake randomness. (There were four or five natural-looking designs in the box.) Most people wouldn't bother.
Tips: 1. the floor must be nice and clean. Watch out for nails that are trying to come out of the old floor, for whatever neurotic reason of their own.