well this is a better guide than the one he leeched the pic off of, but it's still leeched.
And yes this DOES work, I've been doing it for at least a year, BUT it doesn't help all that much, it just makes ghosts more visible when they move. If they move even a little (like if they mess up a b-hop or try to move slowly w\o jumping and mess up) then you can see them but only for a brief second until they go invisible again. If they're not moving you will still have to pinpoint so if you're not already, then get skills in pinpointing so you can pwn LIKE A BOSS with this bug =)