multiple errors on postgresql

warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 19 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO role (`rid`, `name`) VALUES (3, 'Moderator') in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 25 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO permission (`rid`, `perm`, `tid`) VALUES (3, 'administer comments, use original size, administer nodes, create page content, edit page content, edit story content, revert revisions, access administration pages', 0) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 20 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO users (`uid`, `name`, `pass`, `mail`, `mode`, `sort`, `threshold`, `theme`, `signature`, `created`, `access`, `login`, `status`, `timezone`, `language`, `picture`, `init`, `data`) VALUES (1, 'admin', MD5('admin'), '', 0, 0, 0, '', '', NOW(), NOW(), 0, 1, NULL, '', '', '', NULL) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 20 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO users (`uid`, `name`, `pass`, `mail`, `mode`, `sort`, `threshold`, `theme`, `signature`, `created`, `access`, `login`, `status`, `timezone`, `language`, `picture`, `init`, `data`) VALUES (2, 'user', MD5('user'), '', 0, 0, 0, '', '', NOW(), NOW(), 0, 1, NULL, '', '', '', NULL) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 26 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO users_roles (`uid`, `rid`) VALUES (2, 3) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 24 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO sequences (`name`, `id`) VALUES ('users_uid', 2) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 29 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO filter_formats (`format`, `name`, `roles`, `cache`) VALUES (4, 'Mediawiki', ',,', 1) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 22 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO filters (`format`, `module`, `delta`, `weight`) VALUES (4, 'pearwiki_filter', 0, -5) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.
warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error at or near "`" at character 22 in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 125.
user warning: query: INSERT INTO filters (`format`, `module`, `delta`, `weight`) VALUES (4, 'geshifilter', 0, 5) in /home/brenda/drupal-5.1/includes/database.pgsql.inc on line 144.