jo,

A quick way:
1) Press on threaded mode button (top left corner button under logout) to get a recap of thread per post.
2) Highlight all, copy, then paste into word.
3) Eliminate the thread subject column and voila you have a list of the people who participated in that thread (along with the date of appearance should you wish to eliminate the older ones)
You can also alphabetize in Word if you wish.

What I was really looking for was a recap like you get through the home page - the one that lists all the participating countries and members in each. It would be nice to have one for AWADtalk specifically.