If I would use it like a normal controller??
I don't know if you're getting what this was designed for or not, but it can't be used like a 'normal controller' because it's not a controller at all, it's just a blank slate for you to do whatever you want with inside the 360 shell and layout.
Say you want to put an SNES controller into the 360 shell, I don't know why, but say you do. You'd use this board and wire up it's button contacts to the spots on the SNES board that you wanted them to be. D-pad to the D-pad, L to LB, Start to Start and so on. In that case, you don't really need the Sticks, Headset and other connectors, no Triggers either for that matter in that layout.
Now if you're wanting to put a PS3 controller in the 360 shell, then you'll need the Triggers, PnC charge and Headset connectors, then for the Sticks it really depends on the version of PS3 controller used if they can be the 360 style or have to be the PS3 style.
The 36X board is really just that, a board. It's not a solder up a few parts, drop in the controller and play on the 360 kind of thing. It's a blank slate to do whatever you want while staying in the 360 controller shell, without having to strip down an existing 360 controller board to use it for the button contacts, which is far more work and might be in a button layout that you're new project controller isn't in.
So again, I can't tell you what you'll need or not, unless I know exactly what you're wanting to do.
