Upgrading Hard Drive on a DELL

I'm helping a friend of mine replace her harddrive for a Dell she has at her business, her old drive crashed. I have succesfully replaced the drive, formatted, and installed Windows XP on the Dell. But now all the images on the display are HUGE, and im pretty sure this is because I have to re-install the drivers for her DELL. She cannot find her Install Disks and we cannot access the internet with her machine. So my question is: Can I download the necessary drivers with my Mac to a thumb drive and then install on her machine?

NOTE: I have used the thumb drive for Windows and Mac before.