No Sweat GI

I'm a new player to ARMA 2 and I recently downloaded this mod. I think it really captures the Vietnam conflict with all the details. Just a few problems. When I start up Operation LowLands in Single Player I get this error. 'bin\config.bin\CfgMagazines.uns_m576vest'. And in-game when I'm trying to interact with villagers or do Spec Op missions back at the base, nothing happens. Also when trying to play the Armoury maps, it loads half way through and then stops. Are there any patches I need to download ? I copied the CBA_CO file on the first page into my ARMA 2 Arrowhead Folder. Am I doing something wrong ? Thanks.