LITTLEWHITEDOG.COM has a follow-up Q&A Session posted on their recently published article How to Dual Boot Linux and Win2K.
Q: I´ve followed your directions but when I choose Linux from the NT boot loader all I get is "LI" and then the PC freezes, what´s up with that?Read more
A: I´d say something went wrong when you modified the "lilo.conf" file. Make sure you do not change the "install=" line and only the "boot=" line. I´ve run into this problem myself during testing and got the same results. Try again and see if that was it, if not send me a copy of your "lilo.conf" file and I´ll see what I can do!