^That link basically describes most of it.
But, Feralheart does not have mod applications and such. The staff watches active and friendly members of the community, and someday they might get offered a staff position.
As the FAQ says, you must be above or at 16 years of age, you must be an active, friendly, and caring member of the community (and probably one who has been along for a while and knows their way all around FH). There are not mod applications open ever, for the reasons I have said above. Moderators basically moderate the game and forum to make sure everything is running smoothly, but Admins and Global Moderators have some extra things they can do as well.
Hopefully this answered your questions~