Oly C-750 driver crashed win98se comp

I downloaded driver for Olympus C-750 for Windows98SE from Olympus website. Now computer not working correctly. 16 colors only, can't go online, at initial restart said incompatible plug and play. Cannot find WIndows98SE cd! Not sure what to do. Help please.
Thank you

First uninstall at add /remove programs.Is this the file you downloaded 102kb ?http://www.olympusamerica.com/files/autoUSB.pdf

The site also mentions not supported on systems software that are a upgrade from windows 95