How to add Ajax to asp.net mvc wizard

Hi experts,

I saw this asp.net mvcl tutorial on implementing a wizard. In the comments at the bottom of the page the author put the code download link.  Before you run the visual studio project though make sure you create the CricketerDb sql server database and the empty Cricketer table. Then point your connection string to your sql server. When you run the wizard and then click finish the data will be inserted into table.

So here's my question:

At the end the author mentions that in part 2 he will add Ajax to this example but doesn't post a link to part 2.

Anyone know the link to part 2 ?
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How to add Ajax to this wizard example?