[soundfx]

If the account you develop with is not an admin, try checking the admin profiles <user>/wpilib/user/<language>/lib directory for the libraries. Copy those into your respective location for whatever account you develop on, then eclipse *should* include them in your project. If not, select your project root in eclipse, hit Alt-Enter, click on Java Build Path, and add an external jar from wherever your libraries are stored.
If you still can't find the libraries, PM me and I can send you the jar files.