error while loading shared libraries, file too short
There was probably an error copying/extracting the libraries. libvtkWidgets.so and libvtkWidgets.so.5.4 should not be files but symbolic links. Try the following:
rm libvtkWidgets.so.5.4 libvtkWidgets.so
ln -s libvtkWidgets.so.5.4.2 libvtkWidgets.so.5.4
ln -s libvtkWidgets.so.5.4 libvtkWidgets.so
Anyway you should check if the software that you are installing is available from the software center. If it is not available and if the above fix does not work you will need to contact the application provider.