In a stand-alone installation, the files are located at
C:\Documents and Settings\All Users\Documents\Autodesk\Acade 2009\Libs. I'm not sure where they would be located on your network drive. To find out where your system is trying to find the libraries at look in your project properties under Project Settings > Schematic Libraries.
In the Project Manager, right-click the project name and select Properties. In the Project Properties dialog box, Project Settings tab, click the Plus sign (+) in front of Schematic Libraries to expand the list. The path to your symbol libraries should be listed.
In the folder should be the attribute templates. If not you will need to install from your DVD.
Hope this helps.
Randy Brunette