Network Controller Driver and others

Hello fellow Windows Users,

Due to a virus problem, I had to re-install windows (xp) operating system on my desktop but in device manager under "other devices" the following items have yellow question marks:-

Multimedia Video Controller
Other PCI Bridge Device
PCI Device
PCI Simple Communications Controller
SM Bus Controller
Video Controller (VGA Compatible)

I am unable to connect to the internet so that I can load my apps. Can someone help me?

Howard