Regarding the order of portfolio items, I went back to the demo site –
https://www.livemeshthemes.com/extinct/ajax-portfolio-three-columns/
and checked for time and date and order in which the items are laid out and it has always been most recent ones first and then the older ones with oldest one coming last. And this works to the date, hour and minute the portfolio item is created (not just date). Pls recheck and confirm this for me that order is an issue (I request you to do this since, surprisingly, this was never reported for any of my themes). If you still seeing this issue, I can login to your site and check what’s happening. Thanks.