Thanks John. I reversed the event ... when the beam of light hits the photocell the LED lights. Now I can determine from across the room when the beam is lined up. Break the beam, LED goes off. If I put this project into actual use, I will put a timer on the LED to go out after a few minutes of making alignment.
It's still difficult and tedious to make that alignment. I suppose that's just the way it is going to be.