HP Pavilion G7 OS/Software :: Cannot Locate Windows 8 Install Disk

I recently Had my HP Pavilion G7 crash on me which ran windows 8 (OEM) I was unable to restore it. I decided to downgrade to windows vista and do a clean install due to the fact I connot locate my w8 install disk. The problem im having is my network,display adaptors and other devices arent working and showing a yellow triangle with an exclamation point and ive done some research and tried fixes like unistalling and reinstalling but it still not working.Here is what is showing up with the exclamation points in yellow
 
network adapters
-acer NIC - 559A pro/100+ with alert on lan 2
 
Other devices
- SM bus Controller
-Universal serial bus(usb) controller
-universal serial bus (usb) controller
-Unkown device
 
I feel like if i can get online and get windows to update some of these things will clear up and fix. Now i did have problems with realtek PCIe FE Family Controller but i went and found the driver for that.here are some system info:
 
system Manufacturer: Hewlett-Packard
system model: HP pavilion g7 notebook pc
system type: x86 based pc (32bit)
processor:  AMD A8 -4500M APU WITH RADEOM(TM) HD GRAPHICS,1900 HMZ 4 CORES
 
I did call HP free support because my warranty was up and they told me it seemed like an software issue or corruption and they felt confident they could fix it but they wanted me to pay for tech support which i dont mind but it would be a monthly service charge which i dont need constant tech support this is the first time ive ran into this issue they also told me that the tech would have me enter some Commands in command prompt to resolve this.