Sean,
I checked your installation and you have an error which says the file
http://yourdomain.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js
is missing. Looks like some code is making the rev slider to load this file from your server instead of the default behavior of Revolution slider to load it from
https://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js
I see now that a plugin named “Root Relative URLs” is making this change, deactivated it and now revolution slider issue is resolved. You can now see and edit the layers. Thanks