Are you having trouble figuring out how to edit comments from with in the WordPress 2.5 admin (or on WordPress.com since the admin upgrade) ? Here’s the secret: you have to click the name of the commenter or the name of the site that sent the TrackBack/Pingback.
This sort of mirrors how post edit links work. To edit a post (or a page), you just click the name of the post. That is quite intuitive. I learned that behavior in about a day, and now the old way of clicking the “Edit” link seems strange. I’ve not had the same experience with comments. I think the problem is that comments don’t have a title, like posts do. The title is an obvious click target. It is (generally) unique, and it is a natural answer to the question “which post do I want to edit?” (oh yeah, this one!) Clicking the comment author is not intuitive. You don’t want to edit the comment author, you want to edit the comment. The comment author is often not unique, and doesn’t really work as a “handle” for an individual comment.
I’ve started an Idea in the WordPress Idea forum that suggests we revert to having an “Edit” action link for comments. Go add your two cents there (and then come back here for more discussion).