Yes, I have updated to wordpress 3.6 and I have also updated the theme.
I did find a folder in the theme package with all the background images.
What I meant by my second question is this:
When you go into the settings of the theme, and you go to the asset background section, you will see all the options for each background asset (labeled as alt 1, alt 2, etc). I would like to know which background images were associated with each alt section, the way it was when I first uploaded the theme.
