It sounds like you have iTunes 11, which looks a little different than older versions of iTunes. You can enable the side bar by following these steps:
Show Sidebar - Choose View > Show Sidebar (this feature will display iTunes features on the left side of the application including Library, Store, Shared, Genius, and Playlists).
You can find other frequently used features in the following article:
You can also find information about syncing with the newest version of iTunes here:
Thank you for using Apple Support Communities.