I understand nothing : how yo use my 360 controler to play DKCR?

Hi there,

I plan to play with 3 games :
DK Country Returns
Sonic (wii ware)
Mario Kart

The only controler i have is a 360 controler.

I'm unable to set it up with dolphin to play with my 360 controler to these games...

Any clue of how to make it work ? Do i have to configure my 360 controler as an emulated wiimote or a GC controller ?
How to tell dolphin to use my pad instead of a wiimote ?

Thanks !