Your nice tutorial does not address the CSS file. I know that I uploaded it previously when I first upgraded the template. Do I upload it again? There have been many changes and I don't want to lose them.
If you have updated to a new version you will need to upload ectcart.css and should do so each time you update. That file shouldn't be edited as it will be overwritten by updaters https://www.ecommercetemplates.com/support/topic.asp?TOPIC_ID=107040
I was confused by the CSS folder in the updater and the style.css file. Can I now upload the CSS folder that is in the updater, or do I have to reinstall the entire update? It updated successfully, but I did not add the CSS folder when I updated.