Sims 3: Generations... Wedding arch problem.?

Srry i know this is off topic but can u tell me where you found your wedding arch? I've looked under misc entertainment/party and everywhere else and i can't find it. Was i suppose to download it off the Sims 3 website because all i see are canes. But anyways maybe you can click one of them and click the get married choice and maybe they will rush to the alter idk. But im not surprised you have that prob b/c i can't find my arch and you can't use yours so go figure, but hope i helped.