Once you complete the main quest in the flotsam skyway the blockade will let you pass over to the tradewind skyway. Puerto Mico should be one of the first places your main quest will take you. Hope this helps ;)
blueboid12: You don't tell us what quests your are currently working on besides the Funky Bunch. From your description, I have to assume that you don't have access yet to Tradewinds Skyway which is where Puerto Mico is. Just keep doing the quests and, eventually, you will get access to Tradewinds Skyway.