It took a while, but the forum is finally live. Both Market license owners and non-owners can visit the forum here. Unregistered users (those that do not own a license) will be able to access the "Presale Questions" category as well as the "Market Gallery" category, while theme owners (once logged in) will have access to a support forum.
Just a few more minor things I am still touching up on around the site, and soon it will be fully complete.
Edit: Also, if anyone experienced any downtime yesterday, I finally set up Markettheme.com as it's own domain rather than a sub domain of Astereo. Everything should be running smoothly from here on out.