This is the index.html with angular-alpha35:
You should include the sfx version of angular 2 like this:
Note that it's a self contained js file you can download locally.
Check this sample project I made in github:
https://github.com/alfonso-presa/angular2-es5-sample
Edit: Check this SO question for more clarification on what sfx means: Difference between angular.dev.js and angular.sfx.dev.js