If you have adjustable sights on your pistol, do it just like you would a rifle (read the manual to see how to adjust it). Shoot from the distance you want to zero the sights at, get 3-5 shot groups, and adjust accordingly. I would maybe support the pistol with some sandbags if you are having a really hard time shooting accurately off hand. If you are flinching, something I did that helped a lot was I had a friend put dummy rounds randomly in the magazines and when I was shooting I could see exactly what I was doing with the muzzle.
If you have fixed sights, any gun shop with a smith on hand should have sight pushers and you can ask them to do it. Just go to the gun store nearest to you. The sights *should* be properly aligned from the factory but in the case they are not, pushing the rear sight to the right or left will adjust windage. To adjust for elevation you will need to swap sights with another set of a different heights.
Father in laws xd40 has less than 100 rounds down the tube and shoots low to the left.
At what round cound should I expect it broken in(
Do you have a full resolution picture of that spengo? Would like to print out a handful of them.