Its very good [url]www.powerbot.org[/url] is the official site:
Botting tips:
You will get banned if you only bot, you should spend your time 75% legit, 25% bot.
Do not bot for over 3 hours a day, unless you want to avoid ban hammer completely, otherwise botting more will almost definitely result in a ban if continued.
Use a good script, do not use a script that looks too much like a bot, always read the feadback.
If you are to suicide bot (bot until ban) on a new account, make sure you make no involvement with your main, and be aware, they WILL have there eye on you permanently after any accounts are banned for botting on your IP.