I think you'll prob get a black and white picture if you're trying to output PAL to an old NTSC TV. The yellow white and red plugs would be for composite.. i think that's the default cable you get with the Wii anyway right? (I bought a component one later on)
You use Gecko OS to load games right? In the settings it should have an option, 'Force PAL60', set that to yes and hopefully it works. I use USB loader GX and there's a similar setting - no idea if it works though as i've got a HDTV so never needed it.
If it doesn't work it might be a black and white image and you'd need an analog PAL > NTSC converter, i think.
You use Gecko OS to load games right? In the settings it should have an option, 'Force PAL60', set that to yes and hopefully it works. I use USB loader GX and there's a similar setting - no idea if it works though as i've got a HDTV so never needed it.
If it doesn't work it might be a black and white image and you'd need an analog PAL > NTSC converter, i think.