If you're a beginner and have a problem with any spinner/prop alignment, sit back and think it over.

The most important consideration is that the prop not touch the holes it passes through on the spinner cone. Anything that presses against the prop blades can weaken those blades if what touches is strong or rigid. And it really doesn't matter much if the prop touches those tiny pins or not. It only really matters that the prop doesn't touch the opening in the cone. (see the 3rd picture below)

So look at how the spinner cone is aligned to the spinner backplate. And look at where the holes will line up. If we look at the spinner backplate that's in the original picture, if we place the spinner on that backplate so the screws hold the cone to the backplate, we see that the opening in the spinner lines up with the two bumps that the red arrows point to. So the prop is going to stick through a hole that lines up where those arrows point. With most props/spinners, we really need to test fit to see where the prop holes lines up with the backplate. Like in the last picture.

BTW, there are a number of different spinners available. But thinking it over works for all of them.

(BTW, the alignment posts on my spinner are NOT straight up. I used that spinner on a 4stroke and the engine did what 4strokes are good at doing, backfire. And the posts took the hit.)