Well design is not so good, but not so bad as well. That Side menu is interesting idea. Well There is nothing I can review more, because to look deeper in to your site you must be registered
Well first of all I noticed flags, they are "not clean", furthermore that Rate this button is in bad place, I understand that you want this button to be noticed, but I think better place it under navigation panel, overall when I now open the site, I see only header and advertisement, so if you would place that rate us button in other place, more content of the site would be visible the same moment as you open the site
Ok, I took your advertising into consideration, but the flags.. what do you mean by not clean? You would prefer them static?