Hi Ankur,
Why can't you open the link? If you click on the link it should result in a JavaScript alert that says "66464", which is the number of hits in the example query.
To view the source code of the example, just look at the HTML source of that url.
Here is the schema for the response object:
If you want to loop through the results and print the manufacturer/mpn you can do this:
$.each(response.results, function(i, result){
alert(result.item.manufacturer.displayname + ' ' + result.item.mpn);
});
Andres