There is information about installing W98 here, but you haven't provided
enough details to be able to confirm that you can actually do it. Do you
have your W98 installation CD? Have you confirmed with IBM that your machine
is compatible with W98 (or at least with the CD that you are going to use)?
http://home.satx.rr.com/badour/html/w98_restore.html
http://home.satx.rr.com/badour/html/upgrade.html

Signature
Jeff Richards
MS MVP W95/W98
> Like "akmd", I have an IBM Stinkpad laptop computer with
> Windows 95 pre-installed and cannot find the update needed
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>
> -J-