Hi Ben,
Thank you again for your advice, and thank you for sharing some of your hard work! I agree that it will still be helpful to me to be able to build my own database with DBCreate, and I also agree that it is helpful to avoid duplicating work!
I didn't realize the GEOPIG link is broken, but it definitely is! I'm not sure why that is, but I do know that slop07.dat can be accessed interactively at this URL (which seems to still be working):
http://geopig3.la.asu.edu:8080/GEOPIG/pigopt1.html
Thanks,
Shanna