I have installed  i-doIT successfully using the automatic installation , but it is not connecting to the DB

I'm using FC 5 ( 2.6.15-1.2054_FC5smp)
PHP5
Mysql 5.0.16-standard
Apache 2.2

I'm getting the following error

isys_exception_database : Query error: 'SHOW TABLES LIKE 'isys_registry';': (Extended Information: NULL)

Fatal error: Uncaught Exception occured in (/usr/local/apache2/htdocs/i-doit_v09/src/classes/components/isys_component_dao_registry.class.php:92): isys_exception_general : Could not find table 'isys_registry' (Extended Information: General exception occured) thrown in /usr/local/apache2/htdocs/i-doit_v09/src/classes/components/isys_component_dao_registry.class.php on line 92

Can anyone pls help