Sorry for the delayed reply - we moved your post from the MSE forum.
You may want to try the Microsoft Public newsgroups here: http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx
or contact HP for help.
In order to connect to your wireless router, your PC needs to have a wireless network adapter installed. It can be internal or a USB based adapter.
-steve
Microsoft MVP Windows Live / Windows Live OneCare, Live Mesh, & MS Security Essentials Forums Moderator