You can just make a thread in the Announcements (Altcoins) section, you can decide for yourself how detailed you want to make it.
Here's a link to that board:
https://bitcointalk.org/index.php?board=159.0You can also bump your thread every 24 hours, any more than that will be regarded as spam.
This doesn't mean you can't answer questions of course, just not bumping for the sake of bumping.
You can use this board for specific discussion about the coin, anything that doesn't fit into the announcement board.
Just try to put some effort in your posts and you'll be fine, good that you ask these questions before posting!