Welcome to the forums Daveman.....
If you want to try another install of the os do this.
If the version of Win.ME that you have is a full version you can do a complete install from the CD.
But if it is an upgrade you will need an earlier version of Windows to show it when asked for a compliance check, Such as Win98, Win95 or 3.1 you get the idea.
OK here is what you need to do.
First go here <
http://www.drd.dyndns.org/index2.html> and download the WinME boot disk.
WinME is FAT32
Boot to this new boot disk.
Select boot with no CD Rom support.
At the A:> Prompt type fdisk /mbr Enter
At the A:> prompt again type fdisk, When the prompt comes up about large disk support select yes.
Then select option 3 Enter
Select option 1 Enter
Select Yes
Type in the Volume Label if there is one and hit enter.
Are you sure Yes.
Esc.
Select 1
Select Yes
Esc
Reboot
Now you need to Format.
Boot to the floppy without CD-Rom support.
At the A prompt type format c:
Select yes
When it's finished you can enter a volume label such as hard drive or you can leave it blank.
Now boot to the floppy one more time, This time select boot with CD-Rom support
At the A prompt select E:\ enter.
This is assuming you have one hard drive and one CD-Rom. The E could be an F or some other letter depending on the amount of IDE devices you have.
With the WinME CD in the drive type setup, Enter this should start loading the Operating System.....
Have fun.....