Fxo gateway

i have freepbx ver 1.7.1 i want to add 2 PSTN Lines to my PBX can anyone help me getting this in very simple steps . for incoming and outgoing calls

i have installed freepbx 1.7.1 now i need to get 2 pstn trunk to my freepbx i have a micronet SP 5052 2 port fxo gateway can any one help to to add this trunk for incoming and out going call setup