Our theme has not support for widgetkit2 at the moment. So, what i did was make the theme installed on your site compatible with widgetkit2 last time you gave me the login details, so the tutorials will not work for you regarding the slider. You don’t need to upload any folder just add slider images from widgetkit2 it will work.
And regarding the black margin, it was ok last time, so i need to check your settings of widgetkit if there is any problem. So could you sent us the login details as the previous details are not working.