@ oOlzerolOo:
Have you seen this thread:
It could be useful to place some of the most important functions on your pad.
But you will still need to use a mouse / keyboard.
There are to many function inside of the game that you can't place on a few pad buttons.
e.g. walking around, chat
It should be possible to develop a specific program that connects your pad with a low level mouse/keyboard device driver like this one:

.
But you need somebody with good programming skills for this and there is a high chance that they block the device driver once more bots use this technique.
Keep an eye on this thread as well :
There isn't anything interessing in yet, but I plan to post some code examples in the near future.