Fresh load of Windows 98? Internet Explorer 5.0 installed by default? Want the last version of IE but there is no longer a Microsoft Windows Update site for Windows 9x?
Microsoft has discontinued support for Windows 98, in case you did not know that.
The version of Internet Explorer that ships with Windows 98SE is version 5.xxxxx blah blah. While you cannot do too much on the web with it you can update to version 6 so why not get it and any nifty fixes etc that are with it?
HERE is a link to a download of Internet Explorer 6 for Windows 98 to help you out.