I just downloaded ARMA2 and OA off of steam along with the DayZ mod. I aslo have DayZ commander too, but I can not play on any DayZ server.
My ARMA2 version is 1.62 and my DayZ version is 1.7.6. It will let me look at the servers but it will not let me join any of them, it often says "Bad version, server rejected connection". I have the most updated version of DayZ so I don't see how this could be a problem. Any help would be appreciated!