I'm not sure if you are referring to an icon showing you are connected to the network? But you can do that by going to Contro Panel, then Network COnnections, then right click on your Local Area Connection, and at the bottom of the general tab there is a tick box for "Show icon in notification area when connected" That will put it in your system tray.
If this isn't what you were wanting ask back and we'll get it straightened out.