Here is an overview for a typical installation :

The steps in bold have already been done and the files are all in /usr/local/teTeX installed when you install the package. The steps that are below that are the ones you will need to do.

  mkdir -p /usr/local/teTeX/share/texmf
  gzip -dc tetex-texmf-3.0.tar.gz \
    | (umask 0; cd /usr/local/teTeX/share/texmf; tar xvf -)
  gzip -dc tetex-src-3.0.tar.gz | (umask 022; tar xvf -)
  cd tetex-src-3.0
  ./configure --prefix=/usr/local/teTeX >& configure.log
  make world >& world.log

Now, make sure to put the newly created binaries into your PATH, e.g.

These directories are Solaris version sensitive, so you
may have to modifiy them to fit your installation.

  PATH=/usr/local/teTeX/bin/sparc-sun-solaris2.8:$PATH; export PATH
or
  setenv PATH /usr/local/teTeX/bin/sparc-sun-solaris2.8:$PATH

and run
  texconfig confall
and check if all the output looks ok and then run
  texconfig
to configure what you need.