As a test, try to import your new .obj file into Poser using File/import as if it were a prop. If it has come out of UVmapper correctly, you should see the figure and the correct materials, but you won't be able to pose it because the figure is effectively a prop. If you still can't see it, something went wrong with the UVmapper export. If you can see it (most likely case) the problem lies in how you edited the .cr2. Check that you specified the path correctly.