You may need to ask the machine supplier to cough up the drivers or replace hardware that isn't supported by XP-64.
For now, the supported hardware is on a very short list.
Have had x64 running great except for the Following; My floppy disk drive,
my CD-ROM and My DVDRW, have started showing the Same problem "Windows
cannot load the device driver for this hardware. The driver may be corrupted
or missing. (Code 39)" Have followed all troubleshooting suggestions and
Even reinstall x64 but no luck. Can anyone pleas help or at least send me
in the right direction.