And, for those who are new here...to find the picture you like in the archive...click archives...photo archive...archive viewer. That will open a page where you can view every picture taken for the last 60 days.
To save the highest resolution, click on the picture and it will open in a pop-up window. Right click on that and save it.
You can also find the code there to share a photo on the forum. Click on share in the upper right of the pop-up window, copy all the text in the box and paste it into a forum post!