How do you use an xbox 360 controller for wii cod black ops?

When we hook the xbox 360 controller into the usb port on the wii it blinks but we cant figure out how to get it to work for the wii game Call of duty black ops. We cant figure out how to get the xbox controllers to work with the wii. they just blink instead of saying player one player two etc. What do we do?
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xbox 360 modded controller