Hello.
You will need the following things.
Newest Version of Xenobot; http://forums.xenobot.net/showthread.php?19
Tibia; www.tibia.com
Once downloaded you should have these two things
Open Tibia and Injector and you will get the image below.
Click Login, if your account isn't logged in, do so.
Click Inject
Select Client
And click Inject at the bottom right hand corner of the box
Login your account and it will confirm Xenobot is running.
Download a script and open it where you saved it, it will look something like this.
Once it has opened, it will ask you what character you will want to open the script with.
The bot will then confirm the script has been loaded.
You can then modify the script by right clicking yourself ingame.
For example, you can enable the walker by right clicking the box and clicking enabled (my one is empty because I didn't load any cavebot script! Yours will have waypoints!)
You then go to the cave, open up Walker, Targetting, Looting and right click all of them and select 'Status: Disabled' this will enable the bot.
Happy Botting Xenobotters!