Load image as a point as a point Tile Mill

Ok so I'm trying to load an image as a point on a blank map canvas. Earlier I tried loading an image as a background using:

Map {
    background-image: url(somefolder/someimage.jpg);
}

This worked but I got the same image repeated ad-infinitum. So someone suggested loading the image as a point. I made a CSV file with lat and lon of zero and added a new layer, I attempted to load the image using the same relative address as before:

Map {
    background-color: #b8dee6;
}
#pointlayer {
    point-file: url(somefolder/someimage.jpg);
}

But nothing shows up with this method. Can anyone shed some light as to whats going wrong here? Is the background hiding the image? I've tried flushing the cache.