amengualSTI.tex is the main latex file. It uses 
the balanced.sty style file (in addition to revtex 
and other standard packages) and calls to several 
postscript figures.

amengualSTI.ps.gz is the gzipped postscript file 
of the full paper including the figures. 

amengualSTI.uu  is a package containing all the files 
of the paper, joined with the Los Alamos uufiles script. 

The rest of the files are the (gzipped) postscript figures.