I don't understand what you mean by this, sorrySelect the verts on the edge of the model, hold down "x" and move to the central grid line in the correct view
I thought that too but there isn't any Do you mean overlapping?Also you seem to have faces on the inside of the head (between the halves) delete those first. Then once the halves are aligned do as tweety mentioned above
Jay
ok im not an expert however i can suggest you use Mirror geometry and make sure you tick merge with original and that would solve the issue , however i think the problem with the duplicate special is that you will have to combine the two halves and afterward select the vertices in the middle and "Merge"So I managed to get it straight on the edges, but when I smooth it, it still treats it as two separate objects and ends up with a giant hole in the middle