You could try the following: edit includes/templates/YOUR_TEMPLATE/css/index_home.css and find .nivo-controlNav which is used by your theme (theme-light, theme-dark etc.) and change styling to this:
Code:
text-align:center;
    padding: 15px 0;
    position: absolute;
    top: 90%;
    right: 10%;
    z-index: 5;
You might need to increase z-index if bullets are not visible.

I haven't tested this so I'm not sure if it will work. Let us know if it worked. :)