helping a person on reddit, http://www.reddit.com/r/admincraft/comments/17el8u/help_setting_up_permissions_with_permissionsex

permissions.yml

    default: Guest
    groups:
      Guest:
        Permissions:
        - bukkit.command.give
        - bukkit.command.time
        groups: #cant have the "groups" be defined, but without anything. see the comment on reddit for what i mean
        meta:
          prefix: '[Guest]'
          suffix: '' #cant have the "suffix" be defined, but without anything. see the comment on reddit for what i mean
          priority: '10'
      Builder:
        permissions:
        - bukkit.command.tp
        groups:
        -Guest
        meta:
          prefix: '[Builder]'
          priority: '20'
      Admin:
         permissions:
         - bPermissions.admin
         groups:
         -Builder
         meta:
           prefix: '[Admin]'
           suffix: '[Boss]'
           priority: '30'