[Chauphan]

Here is the way I do:
1. Insert Content Encore CS3 DVD (DVD9)
2. Open DVD9
3. Select both folders Libary and Styles
4. Copy both of them
5. Open C:\program files\Adobe\Adobe Encore CS3
6. Paste both Library and Styles folder into Adobe Encore CS3 folder.
7. Start Adobe Encore CS3
8. Check your library and Styles tabs. You will see them.
Good luck.
Charles