The most important thing to remember, after you type out your comment, you will notice a drop down box that says COMMENT AS: if you hit the drop down box you have options. For those with a gmail account, it is easy; sign in with your gmail user name/password. If you do not have a gmail account select the Anonymous choice. What you need to know about this option, I will not know who is commenting unless you sign your name to the post.
I have a filter on the comments, you will not see your comment immediately post to the blog. Because I am accepting Anonymous comments, I screen all the comments before they post. If this is not working, someone please let me know.