D..
Jo's right. After you do that, click on "comment" on the subject. You don't have to write anything, but just clicking on "comment" will pull up the thread so that you can read everything.
After that, when you see part of a post, it should say the word "more" at the end of it, and then you click on "more" and it will show the entire post.
Hope this works for you...
Dawn