Linksys router-N and Notebook adapter N

I have a Gateway pc. approx 4 yrs old. It has a built in wireless 802G. I
bought a wireless Linksys N router & wireless cardbus N. I can't get it to
work. When I installed both, Linksys sees my router and card but windows
does not see any wireless networks. I installed the PSK2 for better
protection. Somehow the Radio icon in my system tray activated, an it shows
the linksys name also. In my netwrk places it shows that the gateway 802 is
diabled, shows my linksys card N as not connected. Can someone help me get
this to work.
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Appreciate your help !!!
Thank you
DC