Autodesk has announced the release of Service Pack 2 for Civil 3D 2008:

In a continuing effort to provide high quality products, Autodesk has released AutoCAD® Civil 3D® 2008 Service Pack 2, which fixes or addresses a variety of issues discovered by customers and by Autodesk’s internal testing team.

This service pack includes all fixes previously included with AutoCAD® Civil 3D® 2008 Service Pack 1. Please see the Readme for additional information. This Service Pack is intended for all versions of AutoCAD® Civil 3D® 2008 including those that already have Service Pack 1 installed.

Before applying this service pack, make sure that any customizations made to the user profile (such as, customizations made to the support file search paths, print file customizations, printer support file paths, redirections, custom template settings, and so on) are exported to a secure location, then imported and reapplied after the service pack has been successfully installed.

Readme and Download available here.