Network map showing only wired

I have Internet Security 2011, running XP home, cable modem with D-link wireless router. I have 2 desktops hard wired to router. 2 items are connected wireless; TV and desktop. Norton network map shows I have a secured wired network.

How do I know wireless network is secured?  PC that Norton was loaded on first is one of the wire PCs to the D-Link. Can you have wired and wireless?

 

Thanks