All,
The Themes support forum now behaves similarly to the Plugins support forum, in that topics tagged with theme-slug are added to that Theme's support forum, and support topics added using the "Write a New Topic" link on each Theme's Extend listing page will have "[Theme: Theme Name]" appended to the support topic Subject.
So, in order to help facilitate getting more prompt and specific support, please be sure to add your support topic using the "Write a New Topic" link on your Theme's Extend listing page.