khartist on "How do I find which theme is activated?"

I have the 2011 child theme activated; however, a developer recently updated my WP and since doing so, I've lost my footer info. I noticed a new footer.php file within my child theme file and it refers to a 2013 theme. There is a broken '2010' theme in which is missing the style sheet. Does this mean that I have 2010 installed and that I need to change the 2011 child them to reflect 2010? http://www.khartist.com
Thanks