Sorry... I just can't figure out how to manage this. It seems that visitors cannot make a comment on a particular post unless they click to the link for that post, and not from the index/opening page. How do I include the option to comment on an article even though the reader is not on that page but reading it on the opening page? You can see it at here.

The missing "Leave a comment" link should not be missing anymore in version 3.1 if that's what you meant. See http://wordpress.bytesforall.com/