Adobe re-shuffled the Community Forums this morning, so there may have been some brief outages and some bookmarks may be hitting "Not found" pages.
All "empty" top-level product pages (i.e. those without direct discussions) have been cleaned out and the general disucssion pages are now the new top level.
For the FrameMaker forums, this means that the new top-level page is: http://forums.adobe.com/community/framemaker
The sub-forums are listed in the links on the Overview page, EXCEPT for the FrameMaker-RoboHelp Integration link (since it's a sub-forum of the RoboHelp Forums).
The direct link to the FM-RH forum is: http://forums.adobe.com/community/robohelp/robohelp_framemaker
You may need to update your bookmarks to all prodcut top-level forums.
Arnis Gubins - FrameMaker Community Moderator