They likely don't exist. If it's a newer drive (last 2, 3, maybe even 4 years) many companies -- and I'm not sure about LiteON, but the fact that you haven't found it suggests they don't -- don't support Windows 98 anymore. Microsoft themselves have pulled support, as I'm sure you know.
It's probably no help, but if you want support for newer hardware you're going to have to update to Windows 2000 or newer, and with 2000 there can still be support issues. Sorry I couldn't be more help.