Emacs: missing paredit and zenburn. Solution: ELPA.

To have the functionality of the paredit, zenburn and other extensions of the Emacs, there is an easy way to add them to the Lisp Cabinet. Just use ELPA, which is available in the Lisp Cabinet already.

So do following steps:

"...type  M-x package-list-packages. Type r in the package menu buffer to update the list of packages available from the server. If you want a particular package, type i next to its name to mark it for installation, and then x to download and install it."