selecting positive rules for strangers in Membership

I am trying to make positive rules for a stranger to my site. I wanted to select only 3 pages (home, register and account), but the positive rules only shows the last 50 pages. I need further back than that. I am going to be added 100's of pages for an online class and I do not want to make negative rules for guests. Also, if you guys do come in and poke around, you will see Home Page, but that's different than Home.

How do I go back more than 50 pages?