Back on December 11th, Autodesk released Service Pack 2A for the Land Desktop products. Yes, I said products. Depending on which product you use you will need either...
Autodesk Land Desktop 2007 Service Pack 2A
Autodesk Civil 3D—Land Desktop Companion 2007 Service Pack 2A
Note: These pages contain information on how to verify the correct version if you are not absolutely certain.