Preloader Problem..i'm dumb at this

i’m having some trouble with my preloader…

  1. it’s a bar preloader that fills up (progress)
  2. it loops (i need actionscripting help b/c i’m dumb and don’t understand)
  3. i want a preloader that goes to 100% and that has a button that says “proceed” (when clicked will play the .swf that the preloader has loaded.