Many COTHers have Webshots accounts going back several years and if you are one of them, you need to log in to your account and copy all of your uploads because Webshots older file archives have decayed to the point where they no longer function and are getting worse, so many of your older images will be lost. If you have an account with uploads that are several years old (seems to be 2006 or earlier), many of them may be or soon will be lost as older uploaded images are no longer viewable in the Webshots albums even though there are entries for them in the albums. This has been going on for a long time but Webshots has not made it known or seems to be ignoring it, so you need to take action now. Since many of you use Facebook, you probably have no need to keep your Webshots account open if you are not uploading images to it on a regular basis.
Smile is the new Webshots. It is a new interface and all that jazz. Your stuff rolls over but it's not going to save your stuff from decaying or being lost. Generational backups eventually decay to the point where they are useless unless multiple backups exist.