pgwatch: installs but doesn't display anything

Hi all,

trying to run pgwatch1.0 on Ubuntu 12.04 through a Bitnami LAPPstack.

# select version();
PostgreSQL 9.1.1 on i686-pc-linux-gnu, compiled by gcc (GCC) 3.2.2
20030222 (Red Hat Linux 3.2.2-5), 32-bit

Pgwatch installation finishes OK but the webpages of pgwatch display nothing.
Overview: has a table that says "No records found"
Dashboard: No items to display
etc.

pgwatch user was created:
Role name | Attributes | Member of
-----------+------------------------------------------------+-----------
pgwatch | Superuser, Replication | {}

Also there is a pgwatch database (no tables, just 40 dblink functions)
owned by role pgwatch:
Name | Owner | Encoding | Collate | Ctype |
Access privileges
---------------+----------+----------+-------------+-------------+-----------------------
pgwatch | pgwatch | UTF8 | en_US.UTF-8 | en_US.UTF-8 |

Nothing generated in the pg logs when refreshing the webpages.
Any ideas?

TIA,
Thalis