You want to connect with bot, or without bot?
1. With bot: You can use L2Walker or L2Net. You can download both (use search

)
2. Than click here ->

3. You can find many "How to setup bot" threads (use search

)
4. If you do everything and still not working than the server have bot protection
I. Without bot: You can download L2Null updater

II. If you have any problem just ask the GM in forum
Ohm and sorry for my bad english