jwhitens

I have an emachine (model T5026)and I installed windows XP PRO with service pack 2. After installing XP, the following issues are now in device manager with yellow question mark with the exclamation mark:
1. ethernet controller
2. pci device
3. pic simple communications controller
4. scan
5. video controller
6. video controller (vga compatilbe)
These 6 items are worded exactly as they are in device manager, these items are in the folder "other devices". I have the drivers for most of the items but everytime I go to update drivers, I get the error that the drivers were not located and can not be located. I have the driver updates on my external hard drive. For some reason these 6 errors are preventing me from getting online. If any additional info is needed, I apologize, tried to give as much info if I could from what I know.

Jack