If your normals look wrong, like they're going in the wrong direction, just take the map into Photoshop and invert the green channel.

Thats not the problem it can easily be sorted as you say. The problem is the weird lines, as i said might be due to the low poly mesh and Poser not being able to handle that very well, i dont know.

Here's a screen of the Nvidia Normal Filter settings.

I made mine using photoshop, but thanks for sharing.