I am not exactly versed in displaying both the surface and the cut/fill surface in your section data.But I know it can be done.
Here are some of the tutorial/help folders for civil3d.
Have you used them?
Assemblies folder Windows XP:
C:\Documents and Settings\All Users\Application Data\Autodesk\C3D 2011\enu\Assemblies\
Windows Vista:
C:\ProgramData\Autodesk\C3D 2011\enu\Assemblies\
Windows 7:
C:\ProgramData\Autodesk\C3D 2011\enu\Assemblies\
Autodesk Documents folder
Windows XP:
C:\Documents and Settings[user name]\My Documents\Autodesk
Windows Vista:
C:\Users[user name]\Documents\Autodesk
Windows 7:
C:\Users[user name]\Documents\Autodesk
Civil 3D Project Templates folder
C:\Civil 3D Project Templates
Civil 3D Projects folder
C:\Civil 3D Projects
Data folder
Windows XP:
C:\Documents and Settings\All Users\Application Data\Autodesk\C3D 2011\enu\Data\
Windows Vista:
C:\ProgramData\Autodesk\C3D 2011\enu\Data\
Windows 7:
C:\ProgramData\Autodesk\ C3D2011\enu\Data\
Local Template folder
Windows XP:
C:\Documents and Settings[user name]\Local Settings\Application Data\Autodesk\C3D 2011\enu\Template\
Windows Vista:
C:\Users[user name]\AppData\Local\Autodesk\C3D 2011\enu\Template\
Windows 7:
C:\Users[user name]\AppData\Local\Autodesk\C3D 2011\enu\Template\
My Civil Tutorial Data folder
If this folder does not already exist, create it at the following location to save the tutorial drawings as you work on them:
Windows XP:
C:\Documents and Settings[user name]\My Documents\Autodesk
Windows Vista:
C:\Users[user name]\Documents\Autodesk
Windows 7:
C:\Users[user name]\My Documents\Autodesk
tutorial drawings folder
"AutoCAD Civil 3D installation location"\Help\Civil Tutorials\Drawings
tutorial folder
"AutoCAD Civil 3D installation location"\Help\Civil Tutorials