Have you tried bore sighting it, you can zero it like that and adjust from there on. There are a ton of websites that sell laser bore sighters, just google laser bore sights, you'll get about 500,000 hits.
Read the instructions when all else fails. It has tiny little adjustment screws for windage & elevation, and it came with a tiny little allen wrench to use in them. Go slowly but firmly to get them to move/loosen up initially.
