If you are not aware of this package: http://www.developer.nokia.com/Distr..._your_app/Home
Please go and check. If offers all kind of handy tools for promoting of your content.
From Store publishing point of view there is a banner creation tool. Nokia chooses content to be spotlighted and promoted based on several different factors. Some of them being regional and some also product family based.
However if banners are missing, the content cannot be spotlighted right away and process gets more complicated as we will separately ask publisher to add those banners.