ZombieSurvival Plugin Inventory

Im using crafbukkit 1.7.2 with the neweset zombiesurvival plugin. I dont know how to set it so that when they join a game their inventory is not only saved but wiped until the end of the game at which point it would restore it back to how they had it right before they joined the game. Also if players disconnect then reconnect during a game they are left in the game area and can destroy blocks/grief the map. What do i need to do to fix this?