The Components window is displayed on the right in your screenshot. If you want to see the components in the model, click on the little house icon just to the left of the search window that shows"3D Warehouse."
This isn’t clear. Where and what exactly are you expecting to see? If a component has been made unique, it is no longer connected to the component is was previously related to.
Go to the Window menu, click Default Tray and tick Entity Info.