The drupal core comes with a Recent Comments module, as you probably already know. This module doesn't allow for any configuration options, so I simply added to it. The core module is a block module that simply shows the 10 most recent comments. But what if you only want to show 5 posts, or perhaps only show comments from a particular content type? Below are the changes that i made. The majority of this code came directly from the drupal core comment.module file.