I have the support forum plugin installed on a multi-site install of wordpress with bbpress 2.1.
Once installed, however, When viewing topics the options I have are setting a topic to resolved or not, a move topic to other forums checkbox, which does not change the current forum, but does change the forum where the topic started, and an assign button with no dropdowwn box that does nothing.
Also, when viewing the topic list, I can only see tags for resolved topics, not "not resolved" or "not a support topic". Finally, when viewing a forum in the backend, I cannot stop it being a support forum. If I untick the box and update page, when the page reloads the box will be ticked and the forum will still be a support forum.
In the backend I have all options ticked in the "Topic Status Settings" and "Support Froum Settings" sections of the settings.
The only thing I can think of that might be affecting it is I used an earlier version of the plugin for a few days a while ago and possibly it did not uninstall itself properly