Hi David...
did you choose to change the file system to NTFS when you upgraded? ME does not support NTFS. Also, did you run the upgrade advisor before starting the procedure as that would highlight any drivers which would need replacing for your hardware as ME and XP are built on two different technologies (16bit and 32bit).
In many cases, it's best to install XP as a fresh installation...that way you can be sure if being able to install all the hardware as it's detected by XP.
Hope that helps
did you choose to change the file system to NTFS when you upgraded? ME does not support NTFS. Also, did you run the upgrade advisor before starting the procedure as that would highlight any drivers which would need replacing for your hardware as ME and XP are built on two different technologies (16bit and 32bit).
In many cases, it's best to install XP as a fresh installation...that way you can be sure if being able to install all the hardware as it's detected by XP.
Hope that helps