looks like that solved my problem. A small seam remained at the center but can't really visible, only if i zooming very close to it. thanks for the help.
Problem solved! :D Inserted the trees into the map as 'Rigid Body' actors rather than just static meshes and this has completed fixed the lighting issue.
The UV island may be mirrored. Try flipping it with the little mirror/symmetry icon, and then try relaxing it. If that doesn't solve it, try resetting the Xforms and then try relaxing.
I solved the issue by defining two MImages, one to read from, one to write to. Before, I was simply using the same stream, and it was causing the issue :|
I sort of solved the problem by applying Edit Poly to digit bones and deleting geometry. Probably not the greatest solution, as it's not very handy to animate them now.