Download the nichemcmc.tar.gz file. Unzip it using "gunzip" and untar it using "tar -xf". If you are just interested in running the programs you may just want to use the i586 Linux binaries located in the "bin" directory. Compilation of these programs requires a g++ compiler. To compile the programs, simply move into the "sources" directory and run the "make" command. You will need the STL (Standard Template Library) and the GSL (GNU Scientific Library). Programs were developed using the SGI STL and the GSL v>=1.6 , the other versions of these libraries may not work. These programs also make use of the Linear Algebra Module of the Template Numerical Toolkit (TNT), you don't need to install it, its source code is included in this directory. The new binaries replace the old ones in the "bin" directory.