How do I make the forums made with the plug registrationless?

My client (thinks) she wants folks to not have to log in to use the forums & says she will just deal with the spam. No registration is what she wants. OK, so I glean that she's like it to be on her main site where the person just has to put a name & email to comment. I can't figure how to make the settings so that is possible. IS that possible? Thanks, good folk, in advance.