Just a simple on :CONNECT: command. Copy and paste in Remotes. (Alt+R)
UPDATED: Now with on :STARTUP: {
command
:)

 on *:START: {
 inc %ran
 echo (<<) This script has been ran %ran times (<<)
 echo (<<) For updates about this script please goto (<<)
 echo (<<) Website: <enter website URL> (<<)
 echo (<<) Script coded by <author name> (<<)
 echo (<<) For help, please read the readme.txt file (<<)
 echo (<<) Enjoy! :) (<<)
 echo (<<) Today is: $date @ $time (<<)
}

on *:CONNECT: {
  echo 4,1.::: 14,1 You are running mIRC version $version 4,1:::.
  echo 4,1.::: 14,1 My host is $host 4,1:::.
  echo 4,1.::: 14,1 Computers IP is $ip 4,1:::.
  echo 4,1.::: 14,1 Today is $day / $date 4,1:::.
  echo 4,1.::: 14,1 Have a fun time $me ! :) 4,1:::.
  msg NickServ IDENTIFY $$?="Password?"
  join $$?="What channel should I go in.."
}