Right for FX 5200 is your graphics card and it is from Nvidia. So lets go to nVidia website and download the driver for FX series for Windows XP.
Here is the link to download GeForce Release 175 please make sure to download and save the driver onto your laptop desktop so that it is easier to copy paste.
Now as for the USB is concern, what you need to do is simply
1: Insert the USB Stick into the port onto the laptop
2: Download the driver from the above link
3: Once you insert the USB Stick into your Laptop, click on Start -->My Computer.
4: You'll notice there is one extra Drive display under My Computer, this is your USB Stick
Something like this
The Z drive ( Click This!(Z:)
) is the USB Drive in the picture.
5: Now double click on the drive
6: Copy the file which you downloaded onto the desktop and paste it into the USB drive.
We're done as for getting the Driver from internet, lets go to the broken machine.
Start the machine, go to the safe mode as I mentioned in my previous post
Uninstall the driver which you rightly found under Add/Remove programs
Insert the USB into the USB port onto your broken machine
Go to Start--->My Computer-->USB Drive
Double click the driver you downloaded
Now after install it will say restart your machine. So restart the machine
Now when the computer restarts, press F2
key onto your keyboard. This will take you into bios
Now in the bios look for the options I mentioned in my previous post
1: change AGP speed from "auto" to "8x"
2: turn off AGP "fast writes"
3: change AGP aperture size from 128 to 256
after changing these options press Esc on the keyboard and it will ask you to save the options, press Y
to say yes.
Now it should go into windows normally.
Please keep us updated.
Regards (note: I am going out for lunch now so might reply bit late)