I signed up for the free service, as I noticed on some search an empty image with thumbshots coming soon!  so googledthumbshots and signed up for the free service.  I made my website through the WIX website templates so not sure if I can actually add in a HTML code to the site>  then thought maybe I could just go into thumbshots options and add an alternative image!  but it wont allow me to click on the save options at the bottom of the page? 

can I just add an image to Alternative images and save so it shows up>