Yours is a common problem, not the fault of this site that has no control over ripoffs of copyrighted photographs of submitters here appearing on other sites. If I had a nickel for every photo of N240R that appears elsewhere on the Web without my permission, I'd be richer by far. Complaints to the offending site may or may not work to have the photo removed. Cite violation of US Code Title 17 on Copyrights in your protest. I do give permission to legitimate media requests to use my photos, usually. Permission may depend on my prior dealing with them, however, and their action or response.
This site's photo rules are on the photo submittal page-please read/reread them.
Some copyright infringements may not be worth pursuing-on a model airplane website I would have had to have joined with a site "handle" just to notify and have the Site Administration do something. Early on FlightAware was unresponsive to copyright ripoffs even when leaned on. What do I do with an offending Russian site all in Cyrillic language without an American flag to click on for English translation?
Go to the offending site and protest in strong but polite terms to the Administrator or site web designer/manager if you can. Ask that the photo be removed-immediately, as it is copyrighted by you and was used without your permission. Good luck! The offending site should also take steps to ban the offender of copyright law from further use/access to the site. A-D has banned some offenders. We had some major copyright offender problems a few years ago.