We still have the forum posting issues. It does seem SMF now has a large update that you can use to just overwrite your forum to the new code and keep your database in tact. The problem with this is it will uninstall the modifications.
I'm going to continue to review this but I believe this is the solution. We don't have many mods installed but wanted to let everyone know what could happen as we work to fix this.
I'll post an update soon.