The person at the lounge’s front desk handed me a WiFi brochure. My MacBook didn’t need any special instructions to connect. It simply told me that my preferred access point was not available and asked if I wanted to connect to one that was. After approving that action I was online.
Looking through the troubleshooting section of the brochure turned out to be interesting. It seems that Linksys 802.11G and Dell TrueMobile (1300 and 1400) WLAN Cards. I found it interesting that products that, I would guess, are in a large percentage of notebooks would be problem cases.