how to connect to oracle oci 8

[eluser]411161[/eluser]
Here is my database.php Notice what I commented out. One of those statements cause me not to be able to connect. I believe the db_debug was the culprit. But then I would conenct but

$db['default']['hostname'] = "localhost";
$db['default']['username'] = "as411161";
$db['default']['password'] = "as411161";
$db['default']['database'] = "vcpdb";
$db['default']['dbdriver'] = "oci8";
/*
$db['default']['dbprefix'] = "";
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = "";
$db['default']['char_set'] = "utf8";
$db['default']['dbcollat'] = "utf8_general_ci";
*/

I do see posts out there like this one:
http://ellislab.com/forums/viewthread/63301/