The PostGIS and pgRouting extensions for Postgres were updated so that they will install over any standard Postgres 8.2 installation (in /usr/local/pgsql). This also fixes the install problem with the new split-build Postgres installer.
“The beast is actively interested only in now, and, as it is always now and always shall be, there is an eternity of time for the accomplishment of objects.” – the wisdom of Tarzan