When you boot to the Start Up disk try Command Prompt Only instead of Start Computer with CD ROM Support. Install the CD ROM drivers from the DOS prompt, and make sure you have DOS drivers, then reboot.
You might have to copy the system files if the hard drive is not bootable, since to do it this way you have to let autoexec.bat run, so you can't boot to the Start Up disk after installing drivers. sys c: will do that, at the A:\> prompt. Remember to put a space before c. That will let the machine boot to the hard drive so CD ROM is accessible to run the installation.
I would copy the win98 installation files to the hard drive and install from there, instead of from CD ROM. You still have to have the CD ROM working, but installation should be faster. Also you won't have to dig out the Windows CD to install other hardware later, etc. Windows will automatically look in the folder it was installed from.
If you had everything...Where would you put it?
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