Yes the site is http://support.amd.com/us/gpudownload/Pages/index.aspx
The drivers should be updated but its not that big of deal. and even after you install the "new" drivers 3 weeks later they will be "old"
Remember the saying if it isn't broke don't fix it.
If the card is from ASUS and a few others i don't remember get the driver from them and not ATI, i know Asus adds extra things and sensors and other good OC stuff will not work with the ATI drivers