Knew to Knoppix: Help! w/ getting USB WLAN thing working...

Hello. I downloaded the latest version of Knoppix (running from DVD) on my ~2 year old Gateway laptop. The OS and SW work fine, but I can't establish a wireless networking connection. After reading through the message boards and getting some ideas, I tried the following:

Start 'Terminal'
Knoppix@knoppix: ~$: wlcardconfig
(wireless configuration dialog box appears)
Mode: Managed
ESSID: (I entered the SSID for my router)
WEP key: (I entered the WEP key)
WPA/WPA2 parameters (I didn't change anything here (I'm using WEP 802.11b)
IP: Set/Connect..."eth0 Network Device...Obtain Address Automatically? (I clicked 'Yes')
(wait for a few seconds)
(then it returns with a dialog box with a bunch of IP/network/gateway...blah blah numbers)(I think it successfully received it's info from the router)
(then I close out of that, and try to open 'google.com' or something with the browser...nothing!)

The modem is a USB 802.11g Airlink Model AWLL3026. As mentioned above, it appears to be powered up and recognized, but no connection.

Obviously, I don't really know what I'm doing. Any and all help from the experts out there would be greatly appreciated!

Thanks in advance.