That's not a reason to double post, though. =P
But yeah, if you post a thread in a moderated forum, it will stay hidden until a Moderator approves it.
When that will be, depends on how much the Mod checks that forum, and if your thread meets the requirements.
In case it is okay, it should be visible within a few hours up to one day. If not, you can just PM the Moderator, asking if something was wrong with it.
~closed~