Upgraded to latest version – 3.0.3 and Now I get a “sufficient permissions to access this page” error

Try visiting the list of users, and re-change your role to administrator. WP may have messed up the permissions array during the upgrade.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)