Go to Home Depot and get you some glow rods in the electrical section. They are fiberglass rods that can be screwed together up to 15 ft or so. They have a fish eye in one end so you can connect your wire to it and fish it through the hole so that you can go in the attic and pull it through. Take you a clothes hanger and straighten it out so you can hook the wire if it gets into a corner and you cant crawl far enough to reach it.
It is defiantly easier with two or more people though.