You can post pretty well what you want within your posts and you don't need Premium Support membership to place your ads within your application as that should be possible using NAML.
What premium membership will do is provide a priority service for help and special personalised customisation of the NAML code for your apps (if you're not up to doing the coding yourself). Browse the Premium Support forum to see the kind of requests received by the team and the time scale for meeting requests.
NAML has not yet been formally released yet as the documentation is not complete, but you can see how NAML generates any page by clicking the link towards the bottom of any page (and even edit the code).
Look around the documentation available so far at:
http://naml.nabble.com/
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.