I downloaded some 3DS models from some of the websites suggested by SH3D, and my SH3D is telling me that it can't read the 3DS model, and that I need to select another model. What exactly am I doing wrong? Any help would be appreciated.

This is a link to the zipped models that I downloaded, for reference.

http://www12.zippyshare.com/v/hIuwsZI4/file.html

Again, any help to resolve this would be greatly appreciated.