Huh, that shouldn't be that hard to get a hold of me, I'll look into it. I am that artist, yes. If you buy any tileset from the official RPG Maker site you will only get a license to use it in RPG Maker. The format of the art doesn't matter, it's the license that you need. I do intend to sell the tiles here eventually but I'm doing a kind of update/remake thing to it that isn't done yet. I can sell you the tiles as is or you could wait for the updated set to come out and get both.