Continued means "ongoing." You might ask your friends for their continued help with the movie you're shooting in your neighborhood, even as filming goes long into the night.
Use the adjective continued to describe something that has staying power, or that goes on for some time without pausing. A continued flow of water from a city fire hydrant just keeps on spurting, and your continued support for a politician means you keep on voting for her year after year. The Latin root of continued is continuare, "join together or connect."