First off, check and see if you have /etc/lilo.conf in your filesystem. If you do, then edit the file lilo.conf and make the first line of your device to /dev/hda.
then run the /sbin/lilo command with a -t flag. Then run it again withour the -t.
# /sbin/lilo -t
This should reinstall the LILO back to your MBR, so you don't have to boot from floppy no longer.
If you don't have the /etc/lilo.conf, then let us know, there is a longer process to follow on getting it from your floppy.