The sex listings are alive and well. Reaching them most directly is by following this link:
http://listings.cruisingforsex.com/cfs/index.php
That link never changes so why not bookmark it?
Also, on the home page navigation, top of the page is a link that says 'sex listings' and on the same page is 'search sex listings' including some recently posted links.
http://www.cruisingforsex.com/home.html