Products modules is a simple sample module that shows basic classes and logic for implementing complex modules. However you can create a new metakey and add ButtonSelector for uploading Images into your database/ getting images from Images and Documents module/ getting -uploading images to your file system.
For showing the photos you can use RadRotator
control that you can bind to XmlDataSource or using ObjectDataSource and bind it to Images and Documents library. If you have several images that will be assiciated with an item you should better store them in one Library or categorize them. If you want to show your images as on the frontend of your website you should create a control that inherits from ContentView.
I hope that this helps.
the Telerik team