The Iroquois was Sailcraft's most widely produced boat. Most information regarding the other models (Comanche, Cherokee, Apache, I think were the names?) is mixed in with Iroquois.
The Iroquois Owner's Association has a backlog of newsletters that occasionally deal with the other models.
There's also a Yahoo mailing list that's pretty active about the Iroquois, but I don't recall
seeing any of the other models represented on the mailing list.
IroquoisCats : Iroquois Catamarans