Good, now either turn off the anti-aliasing or switch to a different video backend.
That should fix the weird shadows.
To use a real Wiimote, your PC needs to have a Bluetooth adapter. If you have one, Dolphin makes it painfully simple to pair it.
Also, make sure you're not using a build from the scam site
http://www.dolphin-emulator.com/; the real site is
http://www.dolphin-emu.org/.