OEM resellers don't update their drivers that often once they get something stable, so that really doesn't sound too old. I would use the ones from ASUS. I was thinking maybe video but even AMD 's website says "The AMD Mobility Radeon™ graphics driver supplied by the notebook manufacturer is customized for the built-in display and the features and functions specific to the notebook. It is recommended to use the drivers provided by the notebook manufacturer".
That advice doesn't apply to any external components like printers or devices you plug into your USB ports because they don't come from ASUS in the first place.