If you want to do this with ease, you may add this to your guide as well.
Requirements:
x1 Normal Runescape Client
x1 RSbot.org client
OR
x2 RSbot.org clients
Step one:
Load RS on both clients.
Step two:
Log in the accounts in the same world.
That's all there is to it. Easiest method as well since you can do this with unlimited accounts. This still works, both his method and this.