So this is loving wonderful.
I have Wi-Fi, however only on my iPod. The house at which I'm staying has an AirPort Extreme router to which my laptop can connect, but through which I cannot access the Internet. I don't have any experience whatsoever with Mac-controlled networks and have already exhausted anything I would've thought to be the solution to my problem, which were not many. So unless by some strange coincidence I can miraculously get this to work, I'll only have Internet access on my iPod.
Yet another reason why I hate Macs.