WiiSX help

Hello, I downloaded the Beta 2 version of WiiSX, and am looking for help on opperating it. Mainly, I need to know which folder to put what files in, and what file extension the roms for the emulator is. (I know roms aren't supported, but I'm speaking hypothetically.) Any help would be appreciated!

You can't read the included README?

I looked and could not find a readme file. I'll download again to check. Thank you.

[www.wiibrew.org]