Black dot means you have posed in that thread at some time in the past.
No progress on the Mac downloads the entire vBulletin team can't seem to get it to work with the Mac
in fact iv yet to find a way that the standard Mac can even download a file type that’s un-known to it, also it doesn’t seem to support the content description header so I can't even tell it what it is or what its filename is meant to be, the only solution would be to have everyone upload in a format the Mac likes (Zip), then have the content static and directly accessible to the web root something im not prepared to do at this time