Problems accessing TCL functions

Running Red Hat 7.0,
Have installed the following all from rpms
postgresql-devel-7.0.2-17
postgresql-python-7.0.2-17
postgresql-7.0.2-17
postgresql-jdbc-7.0.2-17
postgresql-perl-7.0.2-17
postgresql-server-7.0.2-17
postgresql-tk-7.0.2-17
postgresql-odbc-7.0.2-17
postgresql-tcl-7.0.2-17

When I attempt to connect to database with pg_connect, the command is
not recognized...
I'm pretty sure I missed something but not sure what it was...

Anybody have any ideas???

Regards

Colby C. Meyer