Reply page

I currently have a reply page Which I call “Contact Us”. It seems to function ok but i want to require a name and an email address in order for a visitor to post to it. I see the proper setting for this under “settings>discussion” on the dashboard but I don’t know how to add the necessary “name” and “email” text boxes. the url is <arnoldgenealogy.com> go to Contact Us on the menu bar. The theme is simple catch.

I Will appreciate your help.