Before you say it, yes I searched the forum and found a topic discussing just what I want to talk about. But it is 6 years old as I figured maybe theres been some advancements like programs that are made specifically to help make your Wiimote into a LightGun controller/Paddle/steering wheel. (I mostly only care about the lightgun part) I got some friends that really want to play some lightgun games and I have a bluetooth adapter and wiimotes and a sensor bar. If the only way to do it is this way http://www.gameex.info/forums/topic/5589-wiimote-as-lightgun/ then I'll do it that way but if there have been better methods developed since then that'd be great if someone could point me in the right direction. 
Also, I have a softmodded Wii and it would be sweet to know if anyone here uses MAME on it for lightgun games and is any good on there.