|It's probably the chipset/motherboard drivers that are lacking. 98 is too old to have the drivers to properly set up the IDE controllers, to which the cdrom is connected. The solution is to boot up with the 98 cd or 98 bootdisk and choose 'cdrom support'. Then copy the contents of the cd with the drivers to the hard drive. Then reboot normally into windows, browse to the location of the copied drivers and run them from the hard drive.|
After booting with the 98 cd or bootdisk you should end up at a dos prompt. You could type MD C:\DRIVERS and enter to create a folder to copy to. Then with the driver disk in the cdrom type C:\WINDOWS\COMMAND\XCOPY D:\*.* C:\DRIVERS/E (there's a space between XCOPY and D:\ and another between *.* and C:) and enter, where D: would be the cdrom drive letter. (It's probably going to be D: or E: depending on what you use to boot up with. The actual drive letter should show when first booting up with the cd or disk and may be different than what you'd expect it to be in windows.)
Then reboot normally into windows and browse to the drivers folder and run the driver installation program.