Actually, it's not too far off Scott and FW. This map is rough, naturally, and I've got a rough one also, and doing a comparison, it's not too far off. As for Registration where it is, it should be closer to the Security gate, down in the lower corner...before the dorms. And, as for looking at a map on the convention website, are you looking at this one?
http://www.ics2009.us/kscg.pdf If so, click on it, again, and see that that campground is No. 3, which isn't on the university campus, but a little way from the university.
I don't know why they didn't put out a better map for people to get used to, before arriving, but...from what I can observe, they didn't!