Wiki front end editing not allowing tags, categories

Using Wiki to create a repository of information. I have everything set up and I am testing the Wiki out w/out being logged into the site (like a normal user). What I noticed is that when I click on "Edit" for a wiki, I am not getting any of the options on the bottom of the form for adding tags, categories etc. It is very important that my users (only a few people) can tag their content as they create it. What am I doing wrong?