Elaine,
Yes, Thredtalk still exists. I checked by finding it with a Google search. This link should work for you. No one seems to use it much lately. I haven't even sewn in weeks. We had a wet spring and developed a bad roof problem. We've been re-roofing it ourselves so our focus has been "up"! At our age climbing a ladder all day makes us a bit weary.
I'll be glad to answer questions, but perhaps you can help get some interest up among the other members. That would be nice.
http://groups.google.com/group/thredtalk
Alfie