I have a very simple wcf application made up of App.config, Iservice.cs, Service,cs and Service.svc. I simply publish this to IIS and end up with bin directory with my DLLs
Just open your WCF Web project, right click on it and select:
Add Windows Azure Deployment Project:
This will create the Cloud Service project for you, and will add your web app as a web role. It will only work if are using Web Application project, and not Web Site project.