You do not need to manually copy and paste any theme files when you update if you have validated your theme installation.
Once you have validate the theme, you can simple update from the dashboard in few clicks.
I checked further and it seems that you have a Pro license but your site http://adamday.us/ is using X. Please note that you wont be able to validate an X site using a Pro license and vice versa. So if you want to validate your site, you will have to have Pro installed and activated and use your Pro license to activate your installation so that you can automatically update from the dashboard.
You can find more info about X to Pro conversion here:
And more info about validation here:
Hope this helps.