[J.B. Marshall]

Hello all,
I am still posting as a new member and learning the Eratospheric ins and outs.
I've noticed that when I've posted public responses to a thread, I'll scroll down to review the past posts and notice some that I cannot see in the main viewing windows. I don't know what these are or how to view them outside of opening the "Post Reply" window. I've tried to post a "Quick Reply" to someone, but then could not see my response to them. I don't know if it actually posted.
I've looked through the FAQs on posting, but could not figure out what the differences were. Could someone kindly explain how to view the "hidden" posts without clicking the "Post Reply" button?
Thanks in advance.