Norton NIS 2009 and wireless SSID access

I am replacing my home wireless router and trying to move to wireless networking.  In summary, my older router is failing and I bought a newer one.  Now Internet Security 2009 is not working well.

 

1)  The wireless network SSID will not work correctly unless I used my previous one (from the older router.)  I want to replace it as I believe someone has been trying to "piggy-back" onto my network.

 

2) When on wireless access, Internet access is extremely slow (at analog dial-up speeds.)  When I use my Ethernet wires, all seems to be working well.

 

3)  NIS network map does not update correctly when any wireless network SSID is used.

 

 

What do I need to do?