pc_geek:
instead of editing your lilo.conf file, try this command
lilo -D windows
but replace `windows' with the label for your windows boot. since this is a one time change you should be back to normal next time (i haven't tried this yet).
nyanta:
if `prompt' isn't specified in /etc/lilo.conf then when booting lilo will just pause a little bit (for the intervel specified by `delay='). when you see lilo start, press the TAB key quickly, you should then be prompted for a kernel choice.
if this doesn't work (maybe because your lilo.conf has delay=0 in it) then you should boot a rescue disk (the disk you installed linux from maybe?) mount the partition /etc is on, and edit lilo.conf then reboot
whichever, when you do get back to linux, put the word
prompt
on a line by itself near the top of /etc/lilo.conf