Over 20K hits on one image going to 404 Error

On this website, there was a post made Aug of 2009. Originally, the website was then known as ElianaCooks.com and now has changed it to KidChefEliana.com. I’ve put in redirects and the client still owns the former name. But lately, We’re getting 404 Errors on this image. The image is there as is the post. However, it is being tagged as 404 error and I’m getting 10,000-20,000 hits to that picture in a day.

Any clue as to why and what can be done about this?

Thank you