One thing I noticed, and you probably are aware of, is that
when you ran lilo, it complained "no medium found" or
something like that. Since the hard drive is
/dev/hdc
my guess is that the
/etc/lilo.conf file probably
has a wrong entry, attempting to install to
/dev/hda.
By far the best solution would be to swap the plugs on your ide
cable (or move jumpers on the drives) so that the hard drive
becomes
/dev/hda. It isn't strictly necessary, but it
is the most common installation, and reduces confusion
for you, and for anyone advising you.
With modern hardware, the jumpers on the drives are set
to the "cable select" position. The drive at the end will
be "master" and the other is "slave"
/dev/hda is primary master, that is, first device
on the first channel. The channels refer to the two connectors
on the motherboard.
You could leave the drive where it is, and edit
/etc/lilo.conf
(assuming the BIOS will boot from that drive), but that's up to you.
