You can edit the links, you would need to remove the attachment and then re-attach the file to establish a new link and you would need to do this one at a time. There a couple of third party utilities that will automatically update the links based on information that you provide to the utility. They can be found at
www.actaddons.com.
Roy Laudenslager
ACT! Certified Consultant
Techbenders
royel@techbenders.com