Hi, I have a new minecraft survival server... I posted a question before on how to have two gamemodes in one server and the answer was to get MultiVerse... I have the latest CraftBukkit build and both MultiVerse-Core and MultiVerse Portals... I have a creative world made and two portals to get back and forth. The Problem is when players try to go through nothing happens. I know this question has been asked before but I cant seem to find an answer for a noob like meh

Extra info:
CraftBukkit: Latest
I run on a Mac (shouldn't makes a difference)
IMPORTANT: I do not have permissions or permissionEX or any of those... When I try to download permissions i get a "404 not found" error...

If anyone can help me set this up I will be VERY grateful (plus ill give you a diamond

Thanks