A begginer's guide might be made in the future, when we have final versions of, at least, the stargates, being as they are the core elements of the mod. But stuff like that has to come in time, with no hurries.
To properly set up gates with the current versions, I'd recommend having previous experience with the OFP gates, how they were set up and used back then, and some scripting/editing knowledge to know your way now with the newer games (ArmA1/2), as current versions of stuff are unfinished, ready for experts, but not so ready for end users.