I\'m in the process of trying to get the jQuery plugin, Uploadify, to work with ASP.NET MVC.
I\'ve got the plugin showing up fine with the following JavaScript snipp
Reading the documentation, it looks like it is sending an array of files. Have you tried:
public string Upload( HttpPostedFileBase[] fileData )
It's also possible that the default model binder won't work with HttpPostedFileBase and you'll either need to use Rory's mechanism or write your own model binder.