Sorry for my lack of knowledge, but I've been trying to use these sprites with the 'tiled' software and I can't find a way to the tiles 'fit' each other. I don't even know the correct width/height to be used and it seems like they're not organized at all, just thrown together in the file. Do I need some special software to use these tiles or am I expected to move them around to make them fit themselves? For example I have no problem using this one http://opengameart.org/content/pixel-art-street-and-avenue which is apparently inspired in the current tileset.

Any help is appreciated. I don't mean to say these are bad tiles, they look amazing. Too bad I can't use them :(