You know, I hate elitist and pretentious people as much as the next person, and I do believe in trying our best to help others. But in this particular case it's not difficult to google for "install debian with pxe". The second result on google [1] says "If your client machine's BIOS supports it, you can then boot the Debian installation system from the network (using PXE and TFTP), and proceed with installing the rest of Debian from the network."
Are you still not sure what those things mean or what to do? How about going to #debian at freenode and asking questions? Maybe the guy in the story was an elitist, so what? This is 2010, there are other ways to ask for help (I know, I know, IRC is sooo 1990's ;-) Hell, these days we can even search for movies and watch people solving the problem! Or, alternatively, how about forgetting about messing with BIOS and borrowing a flash media from someone?
We are not talking about Aunt Tillie [2] here, we're talking about a MIT student. He or she doesn't need to know everything, but I think it's important to know how to find information and to solve problems without too much hand-holding. (although sometimes a session in person can be very helpful and one can learn things that are difficult to learn just by reading).
[1] http://www.debian.org/distrib/netinst
[2] http://catb.org/jargon/html/A/Aunt-Tillie.html