Welcome to bitcointalk!!! You should start with purchasing a copper membership from the forum administration and post a proper announcement thread.

Doing this will allow you to post some images and might  be a little more attractive to your audience. Give them a preview of what to expect ya know.

If you plan on marketing the site, feel free to send me a pm as well and see if I can help ya out with the services I offer.

Good luck on the forum.