Cant See CDRW/DVDROM in My COmp or Adminis T

Hello,

I cant see CDROM/DVDROM in My Computer field or Administartive tool. I had restored the computer to an earlier date.( System Restore), after which i couldnt see the drives an my ethernet is also not working i need the drivers for HL-DT-ST CD-RW GCE-8483B & HL-DT-ST DVD-ROM GCE-8162B, NETWORK DRIVERS WHICH SHOW A YELLOW EXCLAMATION ALONG WITH THE CD & DVD ARE INTEL PRO/100 VE NETWORK CONNECTION - SYMANTEC NETWORK SECURITY MINIPORT & WAN MINIPORT (IP) - SYMANTEC NETWORK SECURITY MINIPORT..

KINDLY HELP ASAP........