To install Term::VT102, simply unpack the distribution archive (something like "tar xzvf Term-VT102-x.y.tar.gz" should do it), enter the top-level directory, and do:
perl Makefile.PL
make
make test (this step is optional)
make install
You should then be able to use the Term::VT102 module in your Perl scripts. See the README file for an introduction and do "perldoc Term::VT102" for API details.