cd writer/dvd not showing up on my computor

[Betty]

I got the latest virus and had to have the computor shop
reinstall xp home edition. Everything was working when I
left the shop. Now neither my cd burner or my dvd player
is working. XP came installed on my comp so I don't have
the program to reinstall. If I download the floppy
version how will I finish the install without the cd? I
checked device manger and they are not showing up there
either. Any help would be appreciated.

Thanks
Betty