Install AFNI
Installing the AFNI software package has a few basic steps, most of which can
be accomplished in many different ways.
The basic steps are as follows:
Step 1: get the set of programs
Step 2: put the programs in a useful directory
Step 3: update the PATH to include that directory
Step 4: get some data to look at
The link address is: http://afni.nimh.nih.gov/pub/dist/HOWTO//howto/ht00_inst/html/index.html