I am pretty sure I understand what you are saying.
If the center shot is fine,then its an easy,quick fix.
Put an arrow on the string,hold the bow as though you are going to shoot it.Now look down the arrow lining it up with the string.This should also meet with the pins,all lined up perfectly.
Try that and see what happens.If the arrow isn't lined up with the pins and string,then move the sight housing to the left to get it right.This will get you in the ball park.Hope this helped and understandable.