Setting up WiFi

Can anyone help me ?...... I bought a wireless wifi usb adapter and installed the cd like it says,but when i try to connect my ds to the wifi it just says no connection was found.........i am using a laptop with vista....

http://www.nintendo.com/consumer/wfc/en_na/ds/connect.jsp?entryId=usbInstallThe second page describes how to connect your DS. Instead of searching for a Wi-Fi signal, you need to select "Connect to your Nintendo Wi-Fi USB Connector".