A little bit shorter.

on *:QUIT: {
  var %.query.num 1
  while ($query(%.query.num)) {
    if ($nick == $v1) { echo -m $nick $timestamp 4* $nick has quit network stating ( $+ $1- $+ ) }
    inc %.query.num
  }
}
on *:NICK: {
  var %.query.num 1
  while ($query(%.query.num)) {
    if ($newnick == $v1) { echo -m $newnick $timestamp 6* $nick changed their nick to $newnick }
    inc %.query.num
  }
}

No comments .....
Addon autor: da^hype.
Posted on: mirc(dot)net
Direct link: http://www.mirc.net/projects.php?go=1105638472&get_review=1

Not bad, i have a irc guestbook working together with php & mysql.
This is cool, but you can make this better.... someday :)

Nice script! .... but use iswm instead of isin :)