You can do this in at least two ways... π
1.)
Go to the path
C:\Users*username*\AppData\Roaming\SketchUp\SketchUp 2013\LayOut\Scrapbooks
Copy the scrapbooks and go back to
C:\Users*username*\AppData\Roaming\SketchUp\SketchUp 2014\LayOut\Scrapbooks
Voila - they're now copied to LO 2014...
2.)
Open LO 2014
Open the scrapbook files one by one located in
C:\Users*username*\AppData\Roaming\SketchUp\SketchUp 2013\LayOut\Scrapbooks
Save the files as scrapbooks...
Your templates are located in:
C:\Users*username*\AppData\Roaming\SketchUp\SketchUp 2013\LayOut\Templates
Same procedure as describes above applies for these...