I am seeing images appearing on your site, so I'm not entirely sure what issue you are having with this... If you mean you can't upload any images, that is because you haven't enabled image uploads in your configuration file.
However, please note that according to our Free Hosting TOS that your primary site language must be either in English, French, or Spanish (you may have other languages, as long as a translation exists in one of those three). As such, your site could currently be permanently suspended due to an unsupported language until you provide such a translation.