Bug in pgAdminIII or in pg 8 beta3 ?

Hi

I think that is can be a bug... When I create a new database in pg8
beta3 (win32) like this

CREATE DATABASE test
  WITH OWNER = admin
       ENCODING = 'UNICODE';

System objects became visible in public schema :
tables like pg_ts_cfg , pg_ts_cfgmap, pg_ts_dict ...
functions , operators etc.

but if I create a database from template0 this objects are not visibles

My installation is with problem or this is a bug ?

Thanks in advance