notice the if (!$check_mod($network,$nick)) { in the code above. add yourself to mods.txt, it also says how to do this in the description at the top of this page.

alias check_mod {
  if (!$1) { return }
  if (!$2) { return }
  if ($me !ison $2) { return 0 }
  if ($1 !ison $2) { return 0 }
  var %f = mods.txt
  if (!$isfile(%f)) { return 0 }
  if (!$lines(%f)) { return 0 }
  var %r = $read(%f,nw,$1)
  if (%r) { return 1 }
  elseif (!%r) { return 0 }
}