Where is photoshop elements 11 catalog files stored in windows 7 for carbonite to back up? Also any other files besides the pictures that I should back up?
Very important : your catalog does not contain your pictures. They are where you have imported them in your computer. If they are all under a master folder like 'My Pictures' or 'Pictures', you should set your backup software to backup those folders.
The catalog itself is mainly a database keeping all the information about your pictures : location, keywords, ratings, albums...
It's a folder containing the dababase and several other components. You find its location looking in the help section, system info.
The integrated backup / restore process in Elements saves both your media files and the catalog.