How can I get the comments to fully display within the theme posts?

How can I get the comments to fully display? For instance, on the bottom of this page it displays the name and link of the person who posted a comment but not the actual comment: http://samsonmedia.net/blog/2012/07/using-eventbrite-to-sell-tickets-to-your-webinar/

Here's another example, two comments listed at the bottom, and it even displays their avatars, but no actual comments: http://samsonmedia.net/blog/2012/09/ways-boost-seo-youtube-videos/comment-page-1/

Please advise how to get the comments to fully display in a comment thread. Thanks