[Sinnoh Riolu wild encounters?]

Just wondering if there are any wild encounters for Riolu that have been added in, and where they would be if they had been added.

[GBA Roms not being recognized]

I've been trying to play on Emerald, but the client always says that I don't have the roms, despite an emerald rom being selected as the emerald rom file. This issue spans across every emerald rom i've tried using. I've even tried putting an emerald rom directly into the Pokemmo roms folder. I'm using OSX btw, I have a feeling that may have something to do with it. I have no issues with the black rom.