WampServer

I installed Wamp5 and brought up localhost, but where it reads "MySQL version" under Server Configuration, there's nothing listed. I clicked on "SQLitemanager 1.2.0" under Tools and got an error: "Error : The SQLite extension can't be loaded. "

Then I clicked on "PHPmyadmin 2.11.0" under Tools and got this error: "phpMyAdmin - Error Cannot load mysql extension. Please check your PHP configuration. - Documentation."

I don't know what's going on. I installed 1.7.2 before awhile ago without any problems and have followed all instructions.

Thanks.