Yes, I know...that is one rendition of the Joseph Smith story. I've posted others to you.
One of the blessings (for me) and dilemmas (for you), is that I possess early church publications. When the Church changes its official story, I have the proof. But you too can find it if you choose to look.
That is no dilemma for me. (Nor does it seem to be much of a blessing for you.) Indeed, I am not sure why you think it such an important point.
The Moroni/Nephi issue is discussed here. In short, the Manuscript History was in error (stating that it was Nephi instead of Moroni), and the others repeated the error. However, most sources from the same period state that the angel who was in charge of the plates was Moroni, although Nephi also appeared to Joseph.
The important point is that both Nephi and Moroni were real persons, ancient prophets of God, who visted Joseph Smith. We can read about them in the Book of Mormon, which Joseph Smith translated from an ancient record by the gift and power of God.
You need not take my word for this. The Book of Mormon itself promises that anyone who reads it and asks God with real intent will receive confirmation from the Holy Ghost that it is true.