Liberty, Triumph, Freedom, Conquest, Pride (April next year) are five ships that go to Jamaica. Ocho Rios is where most go, but Conquest stops at MoBay instead. I like Ocho Rios a little better because the shopping at Island Village is better than at the terminal building in MoBay and it is a short walk from the pier (and safe).
The best wy to check is go to the website and see what sails out of Miami and FLL to Jamaica. Conquest sails out of Galveston, so no worries on checking that!
2007 Victory & Triumph
2008 Conquest & Liberty
2009 Valor, Freedom, and Splendor
2010 Glory and Liberty