Hi,
I can't help you much because your theme could be including those scripts in several different ways, such as by hard-coding it in the template files, or by enqueueing them somewhere in your functions.php file, for example. What makes my task even more complicated is that it's in the back-end of your site for this premium theme, so I can't try to solve it myself. I suggest looking to see which jQuery version your theme is loading in the backend, but this will involve taking a good look at your theme files. This will be a good way to learn all about coding for WordPress if you were at all interested! :)
So, have a look, and if there's any code that you'd like to share with me or have doubts about, feel free. Just a note, though: if the code is of any substantial length (more than a few lines), please use pastebin.com or something similar to share the code. Thanks!