Comment box does not appear

I am a high school teacher and I am going to have my high school students respond to some Internet Safety videos. I have a blog set up with users having to log in. I went in as a user and I see the name of the blog and my directions to the students. When I click on “comment” nothing happens. The box where the users write their comments does not appear. I’ve gone through my administrator settings and searched through the forum, but can’t seem to find a response to this issue. Thanks for your help.

I created two subdomains from my website. I put the blog on both pages. The first one is working fine. Here is the link.
https://cmwblog.cuttingedgeeagles.org/2009/08/22/5/#comments
You probably can’t see the comments because it is set up that a user needs to log in. However, you might see something in the url that would cause the second one not to work. Below is the other blog that doesn’t work. The students would type cmwblog2@cuttingedgeeagles.org. That brings them to my subdomain. Then when I click on ‘comment’, the url changes to what you see below.

https://cmwblog2.cuttingedgeeagles.org/2009/08/23/netsmartz-response/#respond.

I went to view source on both blogs and the only thing different is that blog 2 (the one not working) has the words netsmartz-response in the url and one other place in the code. I was going to try to delete that from the code, but have no idea how to do that.

The word “comment” appears in the same place in the code on both blogs. It just seems that one url says “comment” and other says “respond.”

Any help is greatly appreciated as I am trying to do with my classes tomorrow.