Hi, Lani, and welcome to the Forum.
Regarding your question on varnish, I am afraid I have no familiarity with Damar, but if you go to the "Search" button at the top of any Forum page, you can generally find something available. I searched for "Damar varnish" and this appeared :
http://forum.portraitartist.com/sear...searchid=53228 , so you might want to start your reading here.
FT means full-time. Juried members are those who, like you, have submitted work and have received posting privileges. I'll have to go see what "Associate members" is
As to the red button, I haven't a clue. Just be patient, as sometimes it takes people a while to get to various areas.
Glad to have you here!