Help! I made a mistake in my index.php!!

Somehow I managed to cut, or paste, the wrong thing in the wrong place when I was trying to remove the "Sales Message Goes Here" text after my new installation. Please take a look at the code below and see if you can figure out where the problem is! Thanks so much for your help!

define('TEXT_NOW', '\' now');
define('TEXT_ALL_CATEGORIES', 'All Categories');
define('TEXT_ALL_MANUFACTURERS', 'All Manufacturers');
} elseif ($category_depth == 'top')
{// This section deals with the "home" page at the top level with no options/products selected
/ *Replace this text with the headline you would like for your shop. For example: 'Welcome to My SHOP!'*/
define('HEADING_TITLE')), 'Congratulations! You have successfully installed your Zen Cart™ E-Commerce Solution.');
} elseif ($category_depth == 'nested') {
// This section deals with displaying a subcategory
/*Replace this line with the headline you would like for your shop. For example: 'Welcome to My SHOP!'*/
define('HEADING_TITLE')), 'Congratulations! You have successfully installed your Zen Cart™ E-Commerce Solution.'); 
}
?>

These parentheses are causing you problems, in 2 places:

define('HEADING_TITLE')), 'Congratulations! You have successfully installed your Zen Cart™ E-Commerce Solution.');