直接修改/includes/languages/english/responsive_classic/index.php，这里假设你的模板名是responsive_classic.
Code:
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.');
}
替换相应的文字或代码就行了。