Davwong,
I had a problem with that too. I found that if you stay Signed In, then your Bookmark or Favorite will take you right to the Forum.
As for the Tutorials, which year of C3D do you want?
Dave
Dave Stoll
Las Vegas, Nevada
Yes, I have found the same thing.
I was tasked with getting basic cad tutorials together for some of our drafters and went looking for the Autocad tutorial drawings, and could not locate then on the Autodesk website, just videos.
I ended up using the internet archive at http://archive.org/ to go to the autocad support site and grabbing the old tutorial drawings. Unfortunately this will not work for up to date information and products.
The old civil 3d support site was at http://usa.autodesk.com/adsk/servlet/ps?siteID=123112&id=3571865&linkID=9240697