When i try to join a server

[pingzite 3]

When i try to join a server, running combined operations lite (OA with arma 2 free as a mod, Yes it does work, confirmed on the arma 2 forums.) and dayz installed, (Followed a how to) When i try to join a server it gives me an error,

"Unable to connect, this server requires DLC which is deleted dayz.vehicles dayz.weapons dayz.code"

Whats wrong, and could someone give me a step by step of how to fix?

[MechaGodzilla 5]

http://www.armafiles.info/dayz/

extract the dayz.vehicles dayz.weapons dayz.code rars into your addons folder.

[pingzite 3]

I run it through operation arrowhead making a @Dayz mod folder