If anyone has any insight at all with regard to this, do tell.
I'm on vacation right now and my parents and I are staying at the house of a friend of my mom. They have wireless Internet through an Apple AirPort Extreme router (they're Mac people) connected to a modem. My iPod touch, which I'm currently using to type this, can connect and access the Internet. However, my laptop running Windows 7 cannot. It can detect the router, and even connect to it, but it can't access the Internet. I've never used a Mac-controlled network before and only know a little about them. I've already exhausted every solution of which I know, which aren't many, and none have worked. I'd greatly appreciate any help or insight anybody may have on this subject.
EDIT: I have already considered the idea of directly connecting my laptop to the modem via Ethernet however that wouldn't work too well seeing as the modem is in another room, which just happens to be the room in which my parents are sleeping.