8mm wires wont fit my distributor HELP A NOOBY please

as you can tell by my name...I'm a noob at this. I ordered some 8mm wires from ebay, which said was compatible with my car, obviously not my car. So I went to Advance and they told me to order a "aftermarket distributor" and I checked the world wide web and found nothing of this aftermarket distributor that was spoken of...can you guys help me out? is there a distributor from an older model celica that will fit 8mm wires? or should I just cut my losses and order new wires? oh, and the distributor is leaking oil. woot. I went with NGK platinum plugs, are they worth using? or should I look into getting something else. If so tell me what. thanks laugh