If you need to contact an administrator about account activation (or resurrection)
the email address is: admin @ hawkdawg . com (remove the four blank spaces).
I've written a new tutorial for those who might want to make 3D chain. It's designed for the 'newbie' and shouldn't be of much interest to the 'old' hands out there who already know 3DC.
It comes in a .zip file in PDF format with a rusty texture for bucket filling the object.