Problems with wired Xbox 360 controller (Mac)

[striges]

Alrighty. Hey guys. I've been having a bit of trouble trying to get my wired Xbox 360 controller to work with the Gamecube section of Dolphin. I did a bit of searching around and it seems I am missing something on my version of the emulator? I'm not sure how that's possible, however here are a few screenshots to show what I'm getting my end. Any help would be really appreciated.


I notice many people who post screenshots are able to choose Ports in this section, yet I only have Slot A, B and SP1. Is there anything I need to check elsewhere?





Thanks in advance.