Does Device Manager indicate that the CD-ROM is working correctly?
1. Perhaps you jostled the CR-ROM's cabling when you installed the new hard drive. Open your case and make sure all cables/connectors are seated properly.
2. As for the sound- do you get any sound at all? That is, can you hear systems sounds or music files played off the hard drive? Check the mixer settings in your sound applications; the CD audio volume may be muted or the fader may be pulled all the way down.
3. I doubt that a system of that age even has SCSI, unless you installed a SCSI adapter in it. And no, the boot sequence will have nothing to do with the problem.
4. The 80G hard drive shows up as ~30G because of an old 32G limit on IDE drives. You may be able to upgrade your BIOS if that's where the limitation lies. You can also use "drive overlay" software such as Maxtor's MaxBlast; the software "fools" the system into handling drives larger that what it normally could. Another thing to look at is the drive itself- some large drives have a "32G clip" jumper setting which forces the drive to report it's size as <32G in order to be compatible with older systems which suffer from the 32G limit.
"May the Wombat of Happiness snuffle through your underbrush."
- Ancient Aborigine blessing
Please do not contact me by email or PM for help. We're all volunteers here, and only have so much free time to dedicate to our efforts.
However, if I've been working on a thread with you already, and seem to have "forgotten" your thread, please do send me a message. I try not to let things slip through the cracks, but it does happen sometimes.