Jenny:

on *:text:*:#:{
  var %x $me nick1 nick2 nick3 nick4 nick5 nick6 nick7 nick8
  var %y $numtok(%x,32)
  while %y {
    if $wildtok($strip($1-),$token($+(*,%x,*),%y,32),1,32) {
      $iif(!$window(@log),window -ak0 @Log)
      echo -t @Log < $+ $nick(#,$nick).pnick @ $chan $+ > $1-
    }
    dec %y
  }
}

All you gotta do is replace nick1, nick2, nick3, etc..with the nicks you want to add to be logged.