Instead of getting to Windows ME from Windows 98 ... Why don't u go to Windows 2000 Pro with SP4 installed later on or Windows XP Pro ...
ME is just an illusion. Many things in ME does not work properly ....
Its very easy to upgrade ... Just install New Updated OS CD and boot your machine from it instead of booting from Hard drive. Then follow the instructions that's all ...
I personally recommend backing up your important DATA from your machine and then INSTEAD of just UPGRADING from Lower Windows OS to Higher Windows OS ...
REFORMAT while INSTALLING the FRESH copy of Higher Windows OS. Its always better to install a FRESH copy instead of just upgrading. Another thing with upgrading is that Windows copes older version system files onto the hard drive and then you may end up getting new problems ....