How to Get Rating Stars under Search Engine Results

Hi

As we have some reviews from our customers displayed on a page on one of our sites I would like to have the stars and no. of reviews of the company appear under our listing on the Google search engine results pages. As the GD Rating system plugin is the successor to the GD Star Rating plugin will it do this in the same way? If so, can you give any tips on the settings needed? Any help would be appreciated.