Thank you for your reply ??
I do have the “add new” button, but “All-in-One Calendar” no longer comes up in the list of calendar plugins. So if I am reading your response correctly, it is not available for downloading via WordPress (sigh)
I tried going to Time.ly to download it to my computer (which works) but cannot upload it to WordPress because WordPress is expecting a zip file that does not come with the download.
I am very confused. Does this mean you cannot use the all-in-one calendar with WordPress anymore? That can’t be ….right?