We experienced some issues with Windows Azure the whole day yesterday (23/10/2012). . The Azure team upgrade .Net 4.0 to .Net 4.5 which caused one of the components in the nopCommerce shopping cart to fail and take the whole site down.
We have restored full access to the site by upgrading to nopCommerce 2.65 which includes a fix for the above behaviour. Over the next few days we will update our style sheets & banners.
Our sincere apologies regarding this outage.