To access your files on the linux drive.
From a console:
su <enter>
mount /mnt/hdax where x is the partition number of your linux root.
You are root now,do what you want.
To restore lilo
From a console:
su <enter>
mount -o dev /mnt/hdax
chroot /mnt/hdax
lilo -v
Ctl+D to exit the chroot