Don't do that, it's easier than you think. But first: a general question.
1. It's a corded Xbox controller you're using? If yes continue to 2, if no, go to the store / ebay.
Now we can continue to set-up.
2. Plug in said controller to the PC before starting the game, let the plug and play install itself.
3. Start the game, log in, pick a character.
4. Hit the "home" key on your keyboard, select options then go to controller config.
Everything from here on out is self explanatory but if you need more help hit me up via message or post again.
Have fun and welcome to the server.