so something like this

Code:
on !*:join:#channel:{
  if ($hget(Ndata,$wildsite)) echo 3 -a $nick was $v1
  hadd -m Ndata $wildsite $nick
}
on *:exit:hsave Ndata nick.data
on *:start:{
  if $isfile(nick.data) {
    hmake Ndata
    hload Ndata nick.data
  }
}

i didnt test the code i dont have mIRC now