Im using the latest download from the link (4 days) and calling the script inside my Init.sqf with
//IED INIT
null = ["ied1", 7, 500,"West", 1] execVM "IED\ied.sqf";
null = ["ied2", 7, 500,"West", 1] execVM "IED\ied.sqf";
null = ["ied3", 7, 500,"West", 1] execVM "IED\ied.sqf";
null = ["ied4", 7, 500,"West", 1] execVM "IED\ied.sqf";
null = ["ied5", 7, 500,"West", 1] execVM "IED\ied.sqf";