Are you sure you have WordPress installed? I just visited your site, and checked it and there is no install of WordPress or anything visible in the source code. I also ran a scan of your site via http://sitecheck.sucuri.net and it returned "Unable to properly scan your site. Site empty (no content)."
If you do have a fresh install of WordPress 3.5.1, when you installed WordPress do you have any Cache Plugins activated or listed under plugins? Some times W3 Super Cache or Cache Plugins in general affect your site. I suggest that you deactivate and delete any Cache Plugins. Your site should be visible after that.
If not contact your host provider and they will help you resolve the problem, but from what I've seen, there is no install of WordPress on http://www.piggywog.com