How to change "add to comment" in comment form? When CCK was not in core, as in Drupal 6, and you selected a node type for comments on other node types, the comment form would say the name of the content type instead of comment. In this case, I want the comment form to say 'Add New Review' instead of 'Add New Comment'. Does anyone know how to do this through a module or configuration?
Create a seperate .tpl file for comment-wrapper named comment-wrapper.tpl.php. 

To create a seperate template file for node specific comment wrapper you can create using
comment-wrapper-contenttype.tpl.php copy the code from core comment-wrapper.tpl.php and change the title in the code given below.

While copying from core comment-wrapper.tpl.php don't forget to remove the validation which is meant for forum node types only.

&lt;h2 class="title comment-form"&gt;&lt;?php print t('Add new comment'); ?&gt;&lt;/h2&gt;