It does look like you have to expand the transparency map on the cuff and the shoulders. I dimly recall that this was an issue with old Poser products being used in newer versions of Poser. You had to "color outside the lines," or the seams would show. Something about the way Firefly handled textures, vs. the old Poser 4 renderer.

People used to get around it by ticking "texture filtering," but that was a bad solution. It blurred the textures. The correct solution was to expand the texture beyond the lines on the texture map.

I think the parts that aren't fully transparent are a different problem. The material room settings aren't right.