Your post asks how to install Windows ME on a machine with XP. It does not ask for drivers or how to get video, sound and such to function.

JUST THE OS!!!

For that it's just 2 steps.

1. Wipe out the drive. Lookup DBAN. Drives are now blank.
2. Install Windows ME. Set the boot drive to the CD and boot the Windows ME CD and install Windows ME.

Step 2 is mostly just pressing the return key a lot.
Bob