If you are lucky and have a Mac, you will simply be able to download the software bundle from the link given below, and run the examples.
Download the software into your home directory, and unpack it with,
If the software simply does not work, then you will have to recompile it. It's built using the gfortran compiler, and although I have attempted to make the code as compiler independent as possible (it started life using the NAG compiler, then the g95 compiler), it obviously best if you can use gfortran. What's more its free, and available from the gcc gfortran binaries site. You build the software by running compile.csh, which is in the CMDfit directory. Individual programs can me remade from the Code directory, with a command like "make -f monte.make".If the compile fails, I'm happy to give what help I can.