I can not understand this topic, works fine and is a topic from the official WP site. Maybe you have problems in your install to install from zip. Also the zip was create from the WP site, the repository.
yep, it seems to be a brief problem on server
still I can’t use it because of Access denied for user ...
Warning: array_map() expects parameter 1 to be a valid callback, function ‘table’ not found or invalid function name in /wp-`content/plugins/adminer/inc/adminer/drivers/mysql.inc.php on line 731
Warning: implode() [function.implode]: Invalid arguments passed in /wp-content/plugins/adminer/inc/adminer/drivers/mysql.inc.php on line 731
Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/adminer/inc/adminer/drivers/mysql.inc.php:731) in /wp-content/plugins/adminer/inc/adminer/include/design.inc.php on line 90
Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/adminer/inc/adminer/drivers/mysql.inc.php:731) in /wp-content/plugins/adminer/inc/adminer/include/design.inc.php on line 91
Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/adminer/inc/adminer/drivers/mysql.inc.php:731) in /wp-content/plugins/adminer/inc/adminer/include/design.inc.php on line 93`
errors on trying to delete test table, plugin seems to be totally useless