We have very popular article "How to host ASP.NET application at Amazon EC2", that is describing steps necessary to deploy your ASP.NET application to Amazon EC2.
But you will have to spend some time to perform all steps that are necessary to deploy it. And we tried to make this task easy. This is why we created special "ASP.Net Deployment Assistant" functionality that is available in our new version of EC2Studio.
Want to see it in action? Read new article "ASP.NET Hosting in Amazon EC2 for 30 minutes" from Pavel Klimov that shows how easy it is now to deploy your web application to Amazon EC2.