phpBB 3.1.3 or newer, including 3.2.x and 3.3.x
but there is no download for 3.3.x - this site needs a major overhaul cause there's a lot of downloads that say 3.3x but no downloads regardless of what it is.. ranks, mods, extensions.. whatever. so it's hard to guess what works and doesn't work with the new forum.
i downloaded it.. keep in mind i am NEW to phpbb.. so how do i install this extension and use it? sorry for being a P.I.t.A.. but we already know all the mess i went through to be where i am... so patience and clarity please
If you want an announcement in a specific forum or in every forum rather than on the index (which is largely what that extension does) you can use the built in announcement options when you edit a post and have the permissions to do it.
You can have as many global or forum specific announcements as you want.