Does anyone know of a script that can make a pop up box that i can put a form in asking if they read the rules to either allow access you deny access to a page? AND I only want the pop up to appear once. I guess it would need cookies but i only want the person to have to answer once and then they can visit the page as many times as they want.

Here's how you could do it, generally speaking.
Pick a language (server- or client-side - there are pros/cons for each).

read cookie
if(rules agreed to already) {
   show content
}
else {
   show rules
   if(agrees to rules) {
      set cookie
      show content
   }
   else {
      show notice about having to agree to rules
   }
}

Rufo.