Welcome to Linux world
You said that you create bootable floppy, didn't you.
You can boot from floppy to load the linux system in to memory.
Open a terminal console ( you know how to, don't you ? ).
Type "su" and password to be a superuser
Then install lilo into your hard disk MBR by issue "/sbin/lilo' or "lilo -v" ( without quotes )
Re boot and hope you will be succeed to explore the linux world.
Hepo this help.