The molden versions ( ${ver} ) are compiled under MacOSX leopard on intel 
processor,
with the gfortran compiler of the Fink distribution. You may be missing the 
shared object libraries required to run the executables. 
The executables are:

molden%{ver}.macosX   (standard Xwindows version)
gmolden${ver}.macosX  (opengl version)
ambfor                (the auxiliary amber/gaff force field program)
ambmd                 (the auxiliary amber/gaff MD program)
surf                  (auxiliary program to create solvent accessible protein
                       surfaces).

molden${ver}_MacOSX_full.tar.gz
		      These version contain all files to run the 64 bits
		      distribution of molden. They include the molden 
		      executables:

		      gmolden, molden, ambfor, ambmd, surf

                      and also auxiliary packages such as

                      pharmer, openbabel and open3dqsar and all auxilliary
		      files to run these packages from molden.

Molden${ver}.dmg

		      Mountable disk image (DMG) containing all of the
		      above.

Libgfortran.3.dylib
		      The gfortran dynamic load library

If the executables wont run because of a move library (Sierra and up), 
type from a terminal window:

sudo ln -s /usr/lib/libcoretls.dylib /usr/lib/libsystem_coretls.dylib