The only software for PLC-2 which will run on Win XP is the one linked to by Ken Moore. The PLC-2 is a very old platform.
AB offers a step forward program where you may upgrade to a PLC5, you keep the same IO because the PLC5 and PLC2 use the same racks, and they will translate the program using their translation software. If you want to pursue this course you must contact your AB distributor.