Can't get my NOOK connected to my network

I've tried unsuccessfully to connect my Nook Color to my network. I've got a D-Link DIR-825 router. This is a dual band router. My Nook does detect the 2.4GHz band network. I just can't connect to it. I've tried my admin password. I've tried a pin number I found in the Wi-Fi settings. I've tried WPA security. I've tried WEP security. I think the main problem is I DON'T KNOW WHAT THE HECK I'M DOING. I have 2 PC's, a printer, and a Wii successfully connected to this network, but they are all wired. This is my first wireless device. Can you help? Thanks.

Look here: D-Link Router Setup

If you have the CD that came with the router, use it to set up the Wireless access. If not, follow the manual method. Both shown in the above link.

Post back with any specific questions.