Ok, here is the info needed to connect to the server.

Make sure you have the newest version of DayZ Commander: http://dayzcommander.com/

In Steam, on your Arma 2: Operation Arrowhead, make sure you are not set to beta (Properties>Betas>Set to None)

Do a file check of your Arma 2: Operation Arrowhead

Open DayzCommander
Make sure you are running Arma 2: 125548 (Dont check the "Use Non-Steam Version")
DayZ: 1.8.1
DayZ EPOCH: 1.0.5.1

<<Don't use DayZ Commander to run the game>>
Run Arma 2: Operation Arrowhead
From the main menu go to "Expansions"
Make sure "DayZ Mod" is disabled
Make sure "DayZ Epoch" is enabled

Click OK, then connect through Remote in Multilayer