I opened the new object in UV Mapper and saved the map for it to texture. So far no good ;o) The map is identical to the original sweater object. Why is that? Because the UV mapping itself has not changed. The vertices, although they have been moved by you, are still associated with the SAME original points on the UV Map. Consequently you may see texture stretching or squishing in those areas which can only be corrected by creating an entirely new obj with different mapping.