That Toshiba Bluetooth stack you're using works fine, but you don't need it for Windows Vista SP2 and up. You're in the wrong location, though. That page is for emulated Wiimote functions. All you need to do is ensure "Connect Real Wiimote" and "Use Real Wiimote" are checked. That dialog sucks, I know.
BTW, your Wiimote should rumble when you open this window. If not, ensure you're paired properly then start Dolphin again.
BTW, your Wiimote should rumble when you open this window. If not, ensure you're paired properly then start Dolphin again.