Ask HN: Making Wireless Work With Linux Mint/Ubuntu?

A few weeks ago, I asked the community which operating system I should install on an old Thinkpad T40 (http://news.ycombinator.com/item?id=655621). I decided to try Linux Mint and am loving it thus far. One catch: I can't get wireless to work with IBM's internal wireless card - Intel PRO/Wireless 2100.

I've dug around on the Ubuntu help forums and didn't really find an answer I could implement. Funny enough, fellow hackers and founders at our meetup here in NYC wished me good luck - as this tends to be a common problem with Linux. Ethernet isn't working as well.

So, HN, I turn to you. Can you help me make wireless work on my laptop?